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PLEASE HELP ME ON THIS MATH PROBLEM! I need an explanation

PLEASE HELP ME ON THIS MATH PROBLEM! I need an explanation-example-1
User Leofu
by
8.6k points

1 Answer

5 votes

Answer:

s. -30

Explanation:

All the angles in a triangle equal 180 so:

-2x - x + 90 = 180

add like terms

-3x + 90 = 180

subtracts 90 from both sides

-3x = 90

divide both sides by -3

x = -30

User Xitter
by
7.2k points

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