-6x+12-4x+21-3x+51-8x=0

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Solution for -6x+12-4x+21-3x+51-8x=0 equation: 



-6x+12-4x+21-3x+51-8x=0

We add all the numbers together, and all the variables

-21x+84=0

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

-21x=-84

x=-84/-21

x=+4

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