12+20x=2(6x+20)+x

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Solution for 12+20x=2(6x+20)+x equation: 



12+20x=2(6x+20)+x

We move all terms to the left:

12+20x-(2(6x+20)+x)=0



We calculate terms in parentheses: -(2(6x+20)+x), so:

2(6x+20)+x

We add all the numbers together, and all the variables

x+2(6x+20)

We multiply parentheses

x+12x+40

We add all the numbers together, and all the variables

13x+40

Back to the equation:

-(13x+40)



We get rid of parentheses

20x-13x-40+12=0

We add all the numbers together, and all the variables

7x-28=0

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

7x=28

x=28/7

x=4

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