Question

Make 'c' the subject
3c+b
----- =c+a
2

Answer 1

first step
\[
\frac{2(3c+b)}{2}=2(c+a)
\]

Answer 2

3c + b = 2c + 2a
3c - 2c = 2a - b
c = 2a - b

Answer 3

Thanks a lot