6. Solve Inequalities by Addition or Subtraction
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Use the Addition Property of Inequality.
c > - 1 14
LHS-1 14>RHS-1 14
Add terms
Write as a sum
Distribute - 1
Commutative Property of Addition
a/b=a * 2/b * 2
Subtract terms
Subtract term
We can check our solution by substituting a few values into the given inequality. The value satisfies the inequality if the inequality remains true after substituting and simplifying.
| c | c - 1 14 > - 2 12 | Simplify | True or False? |
|---|---|---|---|
| - 1 14 | - 1 14 - 1 14 > - 2 12 | - 2 12 ≯ - 2 12 | False |
| - 1 | - 1 - 1 14 > - 2 12 | - 2 14 > - 2 12 | True |
| 0 | 0 - 1 14 > - 2 12 | - 1 14 > - 2 12 | True |
We can conclude that as long as c is greater than - 1 14, the inequality is satisfied.