Pre-Algebra Examples

$7 x - 3 (5 - x) + 39$

Step 1

Apply the distributive property.

$7 x - 3 \cdot 5 - 3 (- x) + 39$

Step 2

Multiply $- 3$ by $5$ .

$7 x - 15 - 3 (- x) + 39$

Step 3

Multiply $- 1$ by $- 3$ .

$7 x - 15 + 3 x + 39$

Step 4

Add $7 x$ and $3 x$ .

$10 x - 15 + 39$

Step 5

Add $- 15$ and $39$ .

$10 x + 24$

Step 6

Factor $2$ out of $10 x + 24$ .

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Step 6.1

Factor $2$ out of $10 x$ .

$2 (5 x) + 24$

Step 6.2

Factor $2$ out of $24$ .

$2 (5 x) + 2 (12)$

Step 6.3

Factor $2$ out of $2 (5 x) + 2 (12)$ .

$2 (5 x + 12)$

$2 (5 x + 12)$

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$