mariahdillingham03 mariahdillingham03

15-09-2020
Mathematics

contestada

Can you help and explain this to me, please

Can you help and explain this to me please class=

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Frida76451328 Frida76451328

15-09-2020

x=20
All straight angles are 180 degrees so we’re gonna set up an equation that adds up to 180: x+100+3x=180.
First subtract 100 from both sides and combine the x and 3x to get 4x=80.
Divide both sides by 4 to get x alone and the final answer of x=20.

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