Question

Solve for b.

A=(a+b+c)/3

A.) 3A - a - c = b
B.) -c / 3 = b
C.) A - c / 3 = b
C.) -3 - c = b

Answer 1

First you would want to multiply both sides by 3 to get a straight equation.
So 3A = a+b+c
Then you do subtraction to both sides to get b by itself.
What do you think the answer is from there?

Answer 2

A? @PsychoTink

Answer 3

wait no it's the last one.

Answer 4

You were right with a. I'm assuming based on the capitalization differences that A and a are different. But it's a bad question that it would use the same variables like that.