Pre-Algebra Examples

$\frac{3 x - 5}{7} + \frac{4 x + 5}{7}$

Step 1

Combine the numerators over the common denominator.

$\frac{3 x - 5 + 4 x + 5}{7}$

Step 2

Combine the opposite terms in $3 x - 5 + 4 x + 5$ .

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Step 2.1

Add $- 5$ and $5$ .

$\frac{3 x + 4 x + 0}{7}$

Step 2.2

Add $3 x + 4 x$ and $0$ .

$\frac{3 x + 4 x}{7}$

Step 3

Add $3 x$ and $4 x$ .

$\frac{7 x}{7}$

Step 4

Cancel the common factor of $7$ .

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Step 4.1

Cancel the common factor.

$\frac{7 x}{7}$

Step 4.2

Divide $x$ by $1$ .

$x$