ChelseaLee ChelseaLee

11-04-2019
Mathematics

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BRAINLIEST!

What is the value of x?

BRAINLIESTWhat is the value of x class=

Respuesta :

23-04-2019

Answer:

x = 21

Step-by-step explanation:

We know: The sum of the triangle angle measures is 180°.

Therefore we have the equation:

[tex]100+3x+x-4=180\qquad\text{combine like terms}\\\\(3x+x)+(100-4)=180\\\\4x+96=180\qquad\text{subtract 96 from both sides}\\\\4x=84\qquad\text{divide both sides by 4}\\\\x=21[/tex]

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