5. Solving Inequalities Using Addition or Subtraction
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Mark both numbers on the same number line.
- 3 > - 6, see solution.
We want to write an inequality that compares the numbers - 3 and - 6. To do so, we will mark both numbers on the same number line. Let's do it!
- 3 > - 6 Now, we want to determine whether the inequality remains true when we add 2 to each side. Let's recall the Addition Property of Inequality.
Addition Property of Inequality |
When you add the same number to each side of an inequality, the inequality remains true. |
This means we can add 2 to each side of the inequality and it remains true. Let's check it by adding 2 to both sides of the inequality. - 3 + 2 ? > - 6 + 2 ⇒ - 1 > - 4 ✓