2x-12=-x+15

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



2x-12=-x+15

We move all terms to the left:

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

We add all the numbers together, and all the variables

2x-(-1x+15)-12=0

We get rid of parentheses

2x+1x-15-12=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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