Solve for b in the following formula: A=1/2 (a+b)

Answer 1

To solve for b in the formula A = 1/2(a+b), we need to isolate b on one side of the equation.

First, we can multiply both sides of the equation by 2 to get rid of the fraction:
2A = a + b

Next, we can subtract a from both sides of the equation:
2A - a = b

Therefore, the solution for b is b = 2A - a.