Question #f0264

Dec 14, 2017

$p = 15$

Explanation:

Remember these facts:
Multiplication and division cancel each other out
Addition and subtraction cancel each other out.

In the equation $\frac{p}{3} - 7 = - 2$, we need to cancel subtraction and division.

Therefore, first, we add 7 on both sides.
$\frac{p}{3} - \cancel{7} + \cancel{7} = - 2 + 7$
$\frac{p}{3} = 5$

We now multiply both sides by 3.
$\cancel{3} \left(\frac{p}{\cancel{3}}\right) = 3 \left(5\right)$
$p = 15$