Question

What is the formula for the indicated variables? A-lw wh + lh, for w

Answer 1

Hello there. To solve this question, we have to remember some properties about solving equations for a variable.

Given the following equation:

`A=lw+wh+lh`

We want to solve it for w.

First, notice we can group some factors

`A=w\cdot(l+h)+lh`

Subtract lh on both sides of the equation

`A-lh=w\cdot(l+h)`

Assuming l + h is not equal to zero, divide both sides of the equation by this factor

`w=(A-lh)/(l+h)`

This is the answer to this question.