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Alina [70]
2 years ago
13

Two angles are vertical angles. One angle is ( 8x + 15 ) and the other angle is 143. Solve for x.

Mathematics
1 answer:
sineoko [7]2 years ago
5 0

Answer:

x = 16

Step-by-step explanation:

Verticle angles are always congruent, so:

(8x + 15) = 143

Now, we can solve to isolate x:

8x + 15 - 15 = 143 - 15  (subtract 15 from both sides)

8x/8 = 128/8                (divide both sides by 8)

x = 16

You can always plug in the value of x to the original equation to check your answer:

8(16) + 15 = 143

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