15x-9+12=9x

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



15x-9+12=9x

We move all terms to the left:

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

We add all the numbers together, and all the variables

6x+3=0

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

6x=-3

x=-3/6

x=-1/2

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