Algebra Examples

$[\begin{array}{c} - 9 & - 1 & 7 \\ 0 & 7 & 2 \end{array}] + [\begin{array}{c} - 2 & 0 & 8 \\ - 4 & 5 & - 1 \end{array}]$

Step 1

Add the corresponding elements.

$[\begin{array}{c} - 9 - 2 & - 1 + 0 & 7 + 8 \\ 0 - 4 & 7 + 5 & 2 - 1 \end{array}]$

Step 2

Simplify each element.

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Step 2.1

Subtract $2$ from $- 9$ .

$[\begin{array}{c} - 11 & - 1 + 0 & 7 + 8 \\ 0 - 4 & 7 + 5 & 2 - 1 \end{array}]$

Step 2.2

Add $- 1$ and $0$ .

$[\begin{array}{c} - 11 & - 1 & 7 + 8 \\ 0 - 4 & 7 + 5 & 2 - 1 \end{array}]$

Step 2.3

Add $7$ and $8$ .

$[\begin{array}{c} - 11 & - 1 & 15 \\ 0 - 4 & 7 + 5 & 2 - 1 \end{array}]$

Step 2.4

Subtract $4$ from $0$ .

$[\begin{array}{c} - 11 & - 1 & 15 \\ - 4 & 7 + 5 & 2 - 1 \end{array}]$

Step 2.5

Add $7$ and $5$ .

$[\begin{array}{c} - 11 & - 1 & 15 \\ - 4 & 12 & 2 - 1 \end{array}]$

Step 2.6

Subtract $1$ from $2$ .

$[\begin{array}{c} - 11 & - 1 & 15 \\ - 4 & 12 & 1 \end{array}]$