x-9=2(x+3)+12

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Solution for x-9=2(x+3)+12 equation: 



x-9=2(x+3)+12

We move all terms to the left:

x-9-(2(x+3)+12)=0



We calculate terms in parentheses: -(2(x+3)+12), so:

2(x+3)+12

We multiply parentheses

2x+6+12

We add all the numbers together, and all the variables

2x+18

Back to the equation:

-(2x+18)



We get rid of parentheses

x-2x-18-9=0

We add all the numbers together, and all the variables

-1x-27=0

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

-x=27

x=27/-1

x=-27

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