Question

Solve for b in the mathematical formula A=1/2(a+b)h

Answer 1

`b = (2A)/(h) - a`

Explanation:

`A = (1)/(2) (a + b)h`

Multiply both sides by 2

We have

2A = (a + b)h

Divide both sides of the equation by h

That's

`((a + b)h)/(h) = (2A)/(h)`

We have

`a + b = (2A)/(h)`

Move a to the right side of the equation to make b stand alone

We have the final answer as

`b = (2A)/(h) - a`

Hope this helps you