3.1.2 Solving Inequalities by Adding or Subtracting − Worksheet

Example 1:

Solve each inequality and graph the solutions.

1. 12 < p + 6

2. w + 3 ≥ 4

3. − 5 + x ≤ − 20

4. z − 2 > − 11

Example 2:

5. For adults, the maximum safe water temperature in a spa is 104 ° F. The water temperature in Bill’s spa is 102 ° F. The temperature is increased by t °F. Write, solve, and graph an inequality to show the values of t for which the water temperature is still safe.

Example 3:

6. A local restaurant will deliver food to your house if the purchase amount of your order is at least $25.00. The total for part of your order is $17.95. Write and solve an inequality to determine how much more you must spend for the restaurant to deliver your order.

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