Question

How do you solve for x in `px-qx=r`?

Answer 1

`x = r/(p-q)`

Explanation:

to isolate `x` , remove it as a common factor on the let side

ie. `x (p-q) = r`

now divide both sides by `(p-q)`

`(x cancel(p-q))/cancel(p-q) = r/(p-q)`