Question

Solve A = a+b/2 for b

Answer 1

Answer:

Step-by-step explanation:

I'm not sure if the right side is $\frac{a + b}{2}$ or $a + \frac{b}{2}$, so I'll provide an answer for both:

$A = \frac{a + b}{2}$

$2A = a + b$

$2A - a = b$

$A = a + \frac{b}{2}$

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

$2(A - a) = b$

$2A - 2a = b$

Answer 2

A = a +b/2
A -a =b/2
2(A-a) = b