saraha20019 saraha20019

04-12-2020
Mathematics

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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 class=

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Imstillhuman Imstillhuman

04-12-2020

Answer:

s. -30

Step-by-step 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

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