Start by combining like terms by adding
Divide both sides by
Whenever you're trying to solve an equation, it is always best to keep the variables on one side and the numerical values on the other side. So let's keep the b's on the left-hand side and the numerical values on the right, for this case.
We've made a lot of progress. All we need to do now is move the
Lastly, divide both sides by
If you plug this into the original expression, you'll see that both sides equal: