Sometimes we have to solve an inequality and we do this in exactly the same way as we would solve an equation.
When we solve this, we are going to get a range of values.
We will solve it however, exactly how we will solve an equation, except we will have a less than sign rather than an equal sign.
First, we add 4 to both sides. 3x -4 +4 < 8 +4
So that removes the 4 on the left-hand side and we, therefore, get 3x < 12
We then divide both sides by 3 to get x < 4