Math 7 (Period 4)

Solving  Two Step Inequalities 9.8

Solving inequalities that require two or more steps—is very similar to solving equations

2x + 1 ≤4

subtract 1 from both sides

Divide both sides by 2

We then graphed this on a number line. We used a closed dot to indicate that 3/2 was part of the solution and our arrow went left. ( See page 484 Example 1)

Solve

We first added 5 to both sides

Now we need to multiply by -3 to both sides so as we do that operation, we must reverse the inequality symbol

m  < -21