20=7x+12+x

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Solution for 20=7x+12+x equation: 



20=7x+12+x

We move all terms to the left:

20-(7x+12+x)=0

We add all the numbers together, and all the variables

-(8x+12)+20=0

We get rid of parentheses

-8x-12+20=0

We add all the numbers together, and all the variables

-8x+8=0

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

-8x=-8

x=-8/-8

x=1

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