-12x=-840

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Solution for -12x=-840 equation: 



-12x=-840

We move all terms to the left:

-12x-(-840)=0

We add all the numbers together, and all the variables

-12x+840=0

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

-12x=-840

x=-840/-12

x=+70

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