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 you divide or multiply by a negative number, you must reverse the inequality sign.
This inequality tells us that all values greater than or equal to 72x-4 will satisfy the inequality. Below we demonstrate the inequality by graphing the solution. Notice that y can equal 72x-4, which we show with a solid line.