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11-03-2020
Mathematics

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Angles X and Y are supplementary. Angle X measure 2x - 9. Angle Y measures 135 degrees. What is the value of x?

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11-03-2020

Answer:

x=27

Step-by-step explanation:

Set up the equation:

2x - 9 + 135 = 180

Subtract 135 from both sides:

2x - 9 = 45

Add 9 to both sides:

2x = 54

Divide 54 by 2:

x = 27

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