9x-3=-12x-108

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Solution for 9x-3=-12x-108 equation: 



9x-3=-12x-108

We move all terms to the left:

9x-3-(-12x-108)=0

We get rid of parentheses

9x+12x+108-3=0

We add all the numbers together, and all the variables

21x+105=0

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

21x=-105

x=-105/21

x=-5

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