-5x-12+7x-21=-2

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Solution for -5x-12+7x-21=-2 equation: 



-5x-12+7x-21=-2

We move all terms to the left:

-5x-12+7x-21-(-2)=0

We add all the numbers together, and all the variables

2x-31=0

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

2x=31

x=31/2

x=15+1/2

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