-2x-15=x+12

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Solution for -2x-15=x+12 equation: 



-2x-15=x+12

We move all terms to the left:

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

We get rid of parentheses

-2x-x-12-15=0

We add all the numbers together, and all the variables

-3x-27=0

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

-3x=27

x=27/-3

x=-9

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