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. Here, we'll subtract 7 and divide by 5, so the inequality sign remains the same.
The solution f≤3 means that any number less than or equal to 3 will satisfy the inequality. This can be graphed with a closed point at 3 on a number line. The solution set should be shaded to the left.
To solve the inequality we'll divide both sides by 3 and then add 4.