-3x+15+12x=78

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Solution for -3x+15+12x=78 equation: 



-3x+15+12x=78

We move all terms to the left:

-3x+15+12x-(78)=0

We add all the numbers together, and all the variables

9x-63=0

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

9x=63

x=63/9

x=7

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