Inequalities can be solved in the same way as equations, by performing inverse operations on both sides until the variable is isolated. The only difference is that when we divide or multiply by a negative number, we must reverse the inequality sign. Here, we need to add 19 to both sides of the inequality.
All values of x that are less than 100 will satisfy the inequality. Now, let's graph all of the possible solutions on a number line. Notice that x cannot equal 100, which we show with an open circle on the number line.
