139,822 views
34 votes
34 votes
Solve for x.
X = [?]
X + 19/7X + 9

Solve for x. X = [?] X + 19/7X + 9-example-1
User SoundsDangerous
by
2.8k points

1 Answer

11 votes
11 votes

Answer:

x = 19

Explanation:

You are given two supplementary angles with measures (x+19) and (7x+9) and you want the value of x.

Supplementary angles

The angles shown are a "linear pair," which are supplementary by definition. That is, their sum is 180°.

(x +19) +(7x +9) = 180

8x +28 = 180 . . . . simplify

8x = 152 . . . . . . . . subtract 28

x = 19 . . . . . . . . . . divide by 8

User Sandra Pazos
by
2.7k points
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