x-12=9(2-x)

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



x-12=9(2-x)

We move all terms to the left:

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

We add all the numbers together, and all the variables

x-(9(-1x+2))-12=0



We calculate terms in parentheses: -(9(-1x+2)), so:

9(-1x+2)

We multiply parentheses

-9x+18

Back to the equation:

-(-9x+18)



We get rid of parentheses

x+9x-18-12=0

We add all the numbers together, and all the variables

10x-30=0

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

10x=30

x=30/10

x=3

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