x+x+x*7=180

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Solution for x+x+x*7=180 equation: 



x+x+x*7=180

We move all terms to the left:

x+x+x*7-(180)=0

We add all the numbers together, and all the variables

2x+x*7-180=0

Wy multiply elements

2x+7x-180=0

We add all the numbers together, and all the variables

9x-180=0

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

9x=180

x=180/9

x=20

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