How do you solve for b in A=1/2h ( a + b)?

May 21, 2018

$2 \cdot \frac{A}{h} - a = b$

Explanation:

Multiplying by $2$:
$2 A = h \left(a + b\right)$
dividing by $h$
$2 \frac{A}{h} = a + b$
substracting $a$
$2 \cdot \frac{A}{h} - a = b$