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For what value of x is line a parallel to line b?

For what value of x is line a parallel to line b?-example-1

1 Answer

5 votes

Answer:

x = 20

Explanation:

Corresponding angles are congruent (have the same measurements).

5x + 15 = 115 Subtract 15 from both sides

5x + 15- 15 = 115 - 15

5x = 100 Divide both sides by 5

x = 20

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