Question

Anyone know how to do this?? Help pls

Answer 1

The correct answer is A. a = 2s - b - c

Explanation:

First you multiply 2 on both sides and you will end up with 2s = a + b + c.

Then to isolate a you would subtract both b and c from both sides of the equation as well to end up with your answer of a = 2s - b - c.