# How do you solve -7(2b - 4) = 5(-2b + 6) ?

Jul 13, 2016

$b = - \frac{1}{2}$

#### Explanation:

First get rid of the brackets by using the distributive law.

$- 7 \left(2 b - 4\right) = 5 \left(- 2 b + 6\right)$

$- 14 b + 28 = - 10 b + 30$

$28 - 30 = - 10 b + 14 b$

$- 2 = 4 b$
$b = - \frac{2}{4} = - \frac{1}{2}$