4x-12=-3(x-3)+4x

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Solution for 4x-12=-3(x-3)+4x equation: 



4x-12=-3(x-3)+4x

We move all terms to the left:

4x-12-(-3(x-3)+4x)=0



We calculate terms in parentheses: -(-3(x-3)+4x), so:

-3(x-3)+4x

We add all the numbers together, and all the variables

4x-3(x-3)

We multiply parentheses

4x-3x+9

We add all the numbers together, and all the variables

x+9

Back to the equation:

-(x+9)



We get rid of parentheses

4x-x-9-12=0

We add all the numbers together, and all the variables

3x-21=0

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

3x=21

x=21/3

x=7

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