X-30=(2x+3)-12

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Solution for X-30=(2x+3)-12 equation: 



X-30=(2X+3)-12

We move all terms to the left:

X-30-((2X+3)-12)=0



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

(2X+3)-12

We get rid of parentheses

2X+3-12

We add all the numbers together, and all the variables

2X-9

Back to the equation:

-(2X-9)



We get rid of parentheses

X-2X+9-30=0

We add all the numbers together, and all the variables

-1X-21=0

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

-X=21

X=21/-1

X=-21

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