Question

Solving the formula for the indicated variable-s = lw + wh + lh, for whow do i start this problem?

Answer 1

The first step we need to take in order to solve the formula for w is changing the side of all the terms that have a w in it to the left side.

`\begin{gathered} s=lw+wh+lh \\ s-lw-wh=lh \end{gathered}`

Then we change switch all the terms that don't have w from the left to the right.

`-lw-wh=lh-s`

Since we have two terms on the left with a "w" we can factor then using the common term:

`w(-l-h)=lh-s`

Now we divide both sides by (-l-h).

`\begin{gathered} w=(lh-s)/(-l-h) \\ w=(-lh+s)/(l+h) \end{gathered}`