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The angles below are supplementary. What is the value of x? A pair of supplementary angles is shown. One angle measures 7x + 33, and the other angle measures 70. 5.3 8.14 11 14.7
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5 votes
The angles below are supplementary. What is the value of x?

A pair of supplementary angles is shown. One angle measures 7x + 33, and the other angle measures 70.

5.3
8.14
11
14.7

User DrColossos
by
7.3k points

1 Answer

3 votes
It would be 11.

Supplementary angles are two angles that add up to 180°

So, 7x+33+70=180
Simplify
7x+103=180
Subtract 103 from both sides.
7x=77
Divide both sides by 7.
x=11
User Wanovak
by
7.9k points
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