3x+12x-12=-7

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Solution for 3x+12x-12=-7 equation: 



3x+12x-12=-7

We move all terms to the left:

3x+12x-12-(-7)=0

We add all the numbers together, and all the variables

15x-5=0

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

15x=5

x=5/15

x=1/3

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