-15=3(2x+3)-12x

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Solution for -15=3(2x+3)-12x equation: 



-15=3(2x+3)-12x

We move all terms to the left:

-15-(3(2x+3)-12x)=0



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

3(2x+3)-12x

We add all the numbers together, and all the variables

-12x+3(2x+3)

We multiply parentheses

-12x+6x+9

We add all the numbers together, and all the variables

-6x+9

Back to the equation:

-(-6x+9)



We get rid of parentheses

6x-9-15=0

We add all the numbers together, and all the variables

6x-24=0

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

6x=24

x=24/6

x=4

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