Algebra Examples

$3 [\begin{array}{c} \frac{3}{2} & 0 & - 2 \\ 3 & \frac{1}{2} & 2 \end{array}] + 2 [\begin{array}{c} - 4 & \frac{5}{2} & \frac{2}{3} \\ \frac{1}{3} & 1 & 2 \end{array}]$

Step 1

Simplify each term.

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Step 1.1

Multiply $3$ by each element of the matrix.

$[\begin{array}{c} 3 (\frac{3}{2}) & 3 \cdot 0 & 3 \cdot - 2 \\ 3 \cdot 3 & 3 (\frac{1}{2}) & 3 \cdot 2 \end{array}] + 2 [\begin{array}{c} - 4 & \frac{5}{2} & \frac{2}{3} \\ \frac{1}{3} & 1 & 2 \end{array}]$

Step 1.2

Simplify each element in the matrix.

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Step 1.2.1

Multiply $3 (\frac{3}{2})$ .

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Step 1.2.1.1

Combine $3$ and $\frac{3}{2}$ .

$[\begin{array}{c} \frac{3 \cdot 3}{2} & 3 \cdot 0 & 3 \cdot - 2 \\ 3 \cdot 3 & 3 (\frac{1}{2}) & 3 \cdot 2 \end{array}] + 2 [\begin{array}{c} - 4 & \frac{5}{2} & \frac{2}{3} \\ \frac{1}{3} & 1 & 2 \end{array}]$

Step 1.2.1.2

Multiply $3$ by $3$ .

$[\begin{array}{c} \frac{9}{2} & 3 \cdot 0 & 3 \cdot - 2 \\ 3 \cdot 3 & 3 (\frac{1}{2}) & 3 \cdot 2 \end{array}] + 2 [\begin{array}{c} - 4 & \frac{5}{2} & \frac{2}{3} \\ \frac{1}{3} & 1 & 2 \end{array}]$

Step 1.2.2

Multiply $3$ by $0$ .

$[\begin{array}{c} \frac{9}{2} & 0 & 3 \cdot - 2 \\ 3 \cdot 3 & 3 (\frac{1}{2}) & 3 \cdot 2 \end{array}] + 2 [\begin{array}{c} - 4 & \frac{5}{2} & \frac{2}{3} \\ \frac{1}{3} & 1 & 2 \end{array}]$

Step 1.2.3

Multiply $3$ by $- 2$ .

$[\begin{array}{c} \frac{9}{2} & 0 & - 6 \\ 3 \cdot 3 & 3 (\frac{1}{2}) & 3 \cdot 2 \end{array}] + 2 [\begin{array}{c} - 4 & \frac{5}{2} & \frac{2}{3} \\ \frac{1}{3} & 1 & 2 \end{array}]$

Step 1.2.4

Multiply $3$ by $3$ .

$[\begin{array}{c} \frac{9}{2} & 0 & - 6 \\ 9 & 3 (\frac{1}{2}) & 3 \cdot 2 \end{array}] + 2 [\begin{array}{c} - 4 & \frac{5}{2} & \frac{2}{3} \\ \frac{1}{3} & 1 & 2 \end{array}]$

Step 1.2.5

Combine $3$ and $\frac{1}{2}$ .

$[\begin{array}{c} \frac{9}{2} & 0 & - 6 \\ 9 & \frac{3}{2} & 3 \cdot 2 \end{array}] + 2 [\begin{array}{c} - 4 & \frac{5}{2} & \frac{2}{3} \\ \frac{1}{3} & 1 & 2 \end{array}]$

Step 1.2.6

Multiply $3$ by $2$ .

$[\begin{array}{c} \frac{9}{2} & 0 & - 6 \\ 9 & \frac{3}{2} & 6 \end{array}] + 2 [\begin{array}{c} - 4 & \frac{5}{2} & \frac{2}{3} \\ \frac{1}{3} & 1 & 2 \end{array}]$

Step 1.3

Multiply $2$ by each element of the matrix.

$[\begin{array}{c} \frac{9}{2} & 0 & - 6 \\ 9 & \frac{3}{2} & 6 \end{array}] + [\begin{array}{c} 2 \cdot - 4 & 2 (\frac{5}{2}) & 2 (\frac{2}{3}) \\ 2 (\frac{1}{3}) & 2 \cdot 1 & 2 \cdot 2 \end{array}]$

Step 1.4

Simplify each element in the matrix.

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Step 1.4.1

Multiply $2$ by $- 4$ .

$[\begin{array}{c} \frac{9}{2} & 0 & - 6 \\ 9 & \frac{3}{2} & 6 \end{array}] + [\begin{array}{c} - 8 & 2 (\frac{5}{2}) & 2 (\frac{2}{3}) \\ 2 (\frac{1}{3}) & 2 \cdot 1 & 2 \cdot 2 \end{array}]$

Step 1.4.2

Cancel the common factor of $2$ .

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Step 1.4.2.1

Cancel the common factor.

$[\begin{array}{c} \frac{9}{2} & 0 & - 6 \\ 9 & \frac{3}{2} & 6 \end{array}] + [\begin{array}{c} - 8 & 2 (\frac{5}{2}) & 2 (\frac{2}{3}) \\ 2 (\frac{1}{3}) & 2 \cdot 1 & 2 \cdot 2 \end{array}]$

Step 1.4.2.2

Rewrite the expression.

$[\begin{array}{c} \frac{9}{2} & 0 & - 6 \\ 9 & \frac{3}{2} & 6 \end{array}] + [\begin{array}{c} - 8 & 5 & 2 (\frac{2}{3}) \\ 2 (\frac{1}{3}) & 2 \cdot 1 & 2 \cdot 2 \end{array}]$

Step 1.4.3

Multiply $2 (\frac{2}{3})$ .

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Step 1.4.3.1

Combine $2$ and $\frac{2}{3}$ .

$[\begin{array}{c} \frac{9}{2} & 0 & - 6 \\ 9 & \frac{3}{2} & 6 \end{array}] + [\begin{array}{c} - 8 & 5 & \frac{2 \cdot 2}{3} \\ 2 (\frac{1}{3}) & 2 \cdot 1 & 2 \cdot 2 \end{array}]$

Step 1.4.3.2

Multiply $2$ by $2$ .

$[\begin{array}{c} \frac{9}{2} & 0 & - 6 \\ 9 & \frac{3}{2} & 6 \end{array}] + [\begin{array}{c} - 8 & 5 & \frac{4}{3} \\ 2 (\frac{1}{3}) & 2 \cdot 1 & 2 \cdot 2 \end{array}]$

Step 1.4.4

Combine $2$ and $\frac{1}{3}$ .

$[\begin{array}{c} \frac{9}{2} & 0 & - 6 \\ 9 & \frac{3}{2} & 6 \end{array}] + [\begin{array}{c} - 8 & 5 & \frac{4}{3} \\ \frac{2}{3} & 2 \cdot 1 & 2 \cdot 2 \end{array}]$

Step 1.4.5

Multiply $2$ by $1$ .

$[\begin{array}{c} \frac{9}{2} & 0 & - 6 \\ 9 & \frac{3}{2} & 6 \end{array}] + [\begin{array}{c} - 8 & 5 & \frac{4}{3} \\ \frac{2}{3} & 2 & 2 \cdot 2 \end{array}]$

Step 1.4.6

Multiply $2$ by $2$ .

$[\begin{array}{c} \frac{9}{2} & 0 & - 6 \\ 9 & \frac{3}{2} & 6 \end{array}] + [\begin{array}{c} - 8 & 5 & \frac{4}{3} \\ \frac{2}{3} & 2 & 4 \end{array}]$

Step 2

Add the corresponding elements.

$[\begin{array}{c} \frac{9}{2} - 8 & 0 + 5 & - 6 + \frac{4}{3} \\ 9 + \frac{2}{3} & \frac{3}{2} + 2 & 6 + 4 \end{array}]$

Step 3

Simplify each element.

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Step 3.1

To write $- 8$ as a fraction with a common denominator, multiply by $\frac{2}{2}$ .

$[\begin{array}{c} \frac{9}{2} - 8 \cdot \frac{2}{2} & 0 + 5 & - 6 + \frac{4}{3} \\ 9 + \frac{2}{3} & \frac{3}{2} + 2 & 6 + 4 \end{array}]$

Step 3.2

Combine $- 8$ and $\frac{2}{2}$ .

$[\begin{array}{c} \frac{9}{2} + \frac{- 8 \cdot 2}{2} & 0 + 5 & - 6 + \frac{4}{3} \\ 9 + \frac{2}{3} & \frac{3}{2} + 2 & 6 + 4 \end{array}]$

Step 3.3

Combine the numerators over the common denominator.

$[\begin{array}{c} \frac{9 - 8 \cdot 2}{2} & 0 + 5 & - 6 + \frac{4}{3} \\ 9 + \frac{2}{3} & \frac{3}{2} + 2 & 6 + 4 \end{array}]$

Step 3.4

Simplify the numerator.

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Step 3.4.1

Multiply $- 8$ by $2$ .

$[\begin{array}{c} \frac{9 - 16}{2} & 0 + 5 & - 6 + \frac{4}{3} \\ 9 + \frac{2}{3} & \frac{3}{2} + 2 & 6 + 4 \end{array}]$

Step 3.4.2

Subtract $16$ from $9$ .

$[\begin{array}{c} \frac{- 7}{2} & 0 + 5 & - 6 + \frac{4}{3} \\ 9 + \frac{2}{3} & \frac{3}{2} + 2 & 6 + 4 \end{array}]$

Step 3.5

Move the negative in front of the fraction.

$[\begin{array}{c} - \frac{7}{2} & 0 + 5 & - 6 + \frac{4}{3} \\ 9 + \frac{2}{3} & \frac{3}{2} + 2 & 6 + 4 \end{array}]$

Step 3.6

Add $0$ and $5$ .

$[\begin{array}{c} - \frac{7}{2} & 5 & - 6 + \frac{4}{3} \\ 9 + \frac{2}{3} & \frac{3}{2} + 2 & 6 + 4 \end{array}]$

Step 3.7

To write $- 6$ as a fraction with a common denominator, multiply by $\frac{3}{3}$ .

$[\begin{array}{c} - \frac{7}{2} & 5 & - 6 \cdot \frac{3}{3} + \frac{4}{3} \\ 9 + \frac{2}{3} & \frac{3}{2} + 2 & 6 + 4 \end{array}]$

Step 3.8

Combine $- 6$ and $\frac{3}{3}$ .

$[\begin{array}{c} - \frac{7}{2} & 5 & \frac{- 6 \cdot 3}{3} + \frac{4}{3} \\ 9 + \frac{2}{3} & \frac{3}{2} + 2 & 6 + 4 \end{array}]$

Step 3.9

Combine the numerators over the common denominator.

$[\begin{array}{c} - \frac{7}{2} & 5 & \frac{- 6 \cdot 3 + 4}{3} \\ 9 + \frac{2}{3} & \frac{3}{2} + 2 & 6 + 4 \end{array}]$

Step 3.10

Simplify the numerator.

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Step 3.10.1

Multiply $- 6$ by $3$ .

$[\begin{array}{c} - \frac{7}{2} & 5 & \frac{- 18 + 4}{3} \\ 9 + \frac{2}{3} & \frac{3}{2} + 2 & 6 + 4 \end{array}]$

Step 3.10.2

Add $- 18$ and $4$ .

$[\begin{array}{c} - \frac{7}{2} & 5 & \frac{- 14}{3} \\ 9 + \frac{2}{3} & \frac{3}{2} + 2 & 6 + 4 \end{array}]$

Step 3.11

Move the negative in front of the fraction.

$[\begin{array}{c} - \frac{7}{2} & 5 & - \frac{14}{3} \\ 9 + \frac{2}{3} & \frac{3}{2} + 2 & 6 + 4 \end{array}]$

Step 3.12

To write $9$ as a fraction with a common denominator, multiply by $\frac{3}{3}$ .

$[\begin{array}{c} - \frac{7}{2} & 5 & - \frac{14}{3} \\ 9 \cdot \frac{3}{3} + \frac{2}{3} & \frac{3}{2} + 2 & 6 + 4 \end{array}]$

Step 3.13

Combine $9$ and $\frac{3}{3}$ .

$[\begin{array}{c} - \frac{7}{2} & 5 & - \frac{14}{3} \\ \frac{9 \cdot 3}{3} + \frac{2}{3} & \frac{3}{2} + 2 & 6 + 4 \end{array}]$

Step 3.14

Combine the numerators over the common denominator.

$[\begin{array}{c} - \frac{7}{2} & 5 & - \frac{14}{3} \\ \frac{9 \cdot 3 + 2}{3} & \frac{3}{2} + 2 & 6 + 4 \end{array}]$

Step 3.15

Simplify the numerator.

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Step 3.15.1

Multiply $9$ by $3$ .

$[\begin{array}{c} - \frac{7}{2} & 5 & - \frac{14}{3} \\ \frac{27 + 2}{3} & \frac{3}{2} + 2 & 6 + 4 \end{array}]$

Step 3.15.2

Add $27$ and $2$ .

$[\begin{array}{c} - \frac{7}{2} & 5 & - \frac{14}{3} \\ \frac{29}{3} & \frac{3}{2} + 2 & 6 + 4 \end{array}]$

Step 3.16

To write $2$ as a fraction with a common denominator, multiply by $\frac{2}{2}$ .

$[\begin{array}{c} - \frac{7}{2} & 5 & - \frac{14}{3} \\ \frac{29}{3} & \frac{3}{2} + 2 \cdot \frac{2}{2} & 6 + 4 \end{array}]$

Step 3.17

Combine $2$ and $\frac{2}{2}$ .

$[\begin{array}{c} - \frac{7}{2} & 5 & - \frac{14}{3} \\ \frac{29}{3} & \frac{3}{2} + \frac{2 \cdot 2}{2} & 6 + 4 \end{array}]$

Step 3.18

Combine the numerators over the common denominator.

$[\begin{array}{c} - \frac{7}{2} & 5 & - \frac{14}{3} \\ \frac{29}{3} & \frac{3 + 2 \cdot 2}{2} & 6 + 4 \end{array}]$

Step 3.19

Simplify the numerator.

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Step 3.19.1

Multiply $2$ by $2$ .

$[\begin{array}{c} - \frac{7}{2} & 5 & - \frac{14}{3} \\ \frac{29}{3} & \frac{3 + 4}{2} & 6 + 4 \end{array}]$

Step 3.19.2

Add $3$ and $4$ .

$[\begin{array}{c} - \frac{7}{2} & 5 & - \frac{14}{3} \\ \frac{29}{3} & \frac{7}{2} & 6 + 4 \end{array}]$

Step 3.20

Add $6$ and $4$ .

$[\begin{array}{c} - \frac{7}{2} & 5 & - \frac{14}{3} \\ \frac{29}{3} & \frac{7}{2} & 10 \end{array}]$