-9x+8x-12=7

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Solution for -9x+8x-12=7 equation: 



-9x+8x-12=7

We move all terms to the left:

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

We add all the numbers together, and all the variables

-1x-19=0

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

-x=19

x=19/-1

x=-19

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