-12=3(x-7)+6x

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Solution for -12=3(x-7)+6x equation: 



-12=3(x-7)+6x

We move all terms to the left:

-12-(3(x-7)+6x)=0



We calculate terms in parentheses: -(3(x-7)+6x), so:

3(x-7)+6x

We add all the numbers together, and all the variables

6x+3(x-7)

We multiply parentheses

6x+3x-21

We add all the numbers together, and all the variables

9x-21

Back to the equation:

-(9x-21)



We get rid of parentheses

-9x+21-12=0

We add all the numbers together, and all the variables

-9x+9=0

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

-9x=-9

x=-9/-9

x=1

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