Question

Solve A =1/2w(b+c) for c.

Answer 1

2A/w - b =c

Explanation:

A =1/2w(b+c)

multiply each side by 2

2A = 2* 1/2 w * (b+c)

2A = w * (b+c)

divide each side by w

2A /w= w/w * (b+c)

2A/w = b+c

subtract b

2A/w - b =c