15x-9=12x+12

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Solution for 15x-9=12x+12 equation: 



15x-9=12x+12

We move all terms to the left:

15x-9-(12x+12)=0

We get rid of parentheses

15x-12x-12-9=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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