3x+x-4-6x=12

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Solution for 3x+x-4-6x=12 equation: 



3x+x-4-6x=12

We move all terms to the left:

3x+x-4-6x-(12)=0

We add all the numbers together, and all the variables

-2x-16=0

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

-2x=16

x=16/-2

x=-8

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