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IgorLugansk [536]
3 years ago
13

In the accompanying diagram, line a intersects line b.

Mathematics
1 answer:
Lynna [10]3 years ago
5 0

Answer:

C. 10

Step-by-step explanation:

(x + 5) = (2x - 5) (vertical angles are congruent)

x + 5 = 2x - 5

Add 5 to both sides

x + 5 + 5  = 2x

x + 10  = 2x

Subtract x from both sides

10  = 2x - x

10  = x

x  = 10

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