4 years ago

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

Mathematics

1 answer:

KonstantinChe [14]4 years ago

7 0

Answer:

x=27

Step-by-step explanation:

First write the equation:

2x-9+135=180

Subtract 135 from both sides.

2x-9=45

Add 9 to each side.

2x=54

Divide 54 by 2.

x=27

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