-3x-4-x=12

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Solution for -3x-4-x=12 equation: 



-3x-4-x=12

We move all terms to the left:

-3x-4-x-(12)=0

We add all the numbers together, and all the variables

-4x-16=0

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

-4x=16

x=16/-4

x=-4

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