15x+12=9x-6

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Solution for 15x+12=9x-6 equation: 



15x+12=9x-6

We move all terms to the left:

15x+12-(9x-6)=0

We get rid of parentheses

15x-9x+6+12=0

We add all the numbers together, and all the variables

6x+18=0

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

6x=-18

x=-18/6

x=-3

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