# How do you solve for r in #p-r=r #?

##### 2 Answers

Mar 7, 2016

By adding r to both sides and dividing by two.

#### Explanation:

Mar 7, 2016

#### Explanation:

We may do any operation on any side of an equation as long as we do the same operation on the other side as well in order to keep the equation true.

We thus perform operations such as to isolate the variable we are trying to solve for

So in this case, we first add

This yields