3x+15=12x-12

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Solution for 3x+15=12x-12 equation: 



3x+15=12x-12

We move all terms to the left:

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

We get rid of parentheses

3x-12x+12+15=0

We add all the numbers together, and all the variables

-9x+27=0

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

-9x=-27

x=-27/-9

x=+3

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