# How do you solve B = 3/10 (A - 4)  for A?

May 17, 2017

$A = \left(10 \frac{B}{3}\right) + 4$

#### Explanation:

$10 B = 3 A - 12$

Find A
$3 A = 10 B + 12$

$A = 10 \frac{B}{3} + \frac{12}{3}$

$A = 10 \frac{B}{3} + 4$

$A = 10 \frac{B}{3} + 4$