(3x+20)+(x+20)+(3x+20)=180

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Solution for (3x+20)+(x+20)+(3x+20)=180 equation: 



(3x+20)+(x+20)+(3x+20)=180

We move all terms to the left:

(3x+20)+(x+20)+(3x+20)-(180)=0

We get rid of parentheses

3x+x+3x+20+20+20-180=0

We add all the numbers together, and all the variables

7x-120=0

We move all terms containing x to the left, all other terms to the right

7x=120

x=120/7

x=17+1/7

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