9x+8=2-9-12x

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Solution for 9x+8=2-9-12x equation: 



9x+8=2-9-12x

We move all terms to the left:

9x+8-(2-9-12x)=0

We add all the numbers together, and all the variables

9x-(-12x-7)+8=0

We get rid of parentheses

9x+12x+7+8=0

We add all the numbers together, and all the variables

21x+15=0

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

21x=-15

x=-15/21

x=-5/7

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