-x-9x+12x+7=0

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Solution for -x-9x+12x+7=0 equation: 



-x-9x+12x+7=0

We add all the numbers together, and all the variables

2x+7=0

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

2x=-7

x=-7/2

x=-3+1/2

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