7x+12=2(1-x)-x

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Solution for 7x+12=2(1-x)-x equation: 



7x+12=2(1-x)-x

We move all terms to the left:

7x+12-(2(1-x)-x)=0

We add all the numbers together, and all the variables

7x-(2(-1x+1)-x)+12=0



We calculate terms in parentheses: -(2(-1x+1)-x), so:

2(-1x+1)-x

We add all the numbers together, and all the variables

-1x+2(-1x+1)

We multiply parentheses

-1x-2x+2

We add all the numbers together, and all the variables

-3x+2

Back to the equation:

-(-3x+2)



We get rid of parentheses

7x+3x-2+12=0

We add all the numbers together, and all the variables

10x+10=0

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

10x=-10

x=-10/10

x=-1

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