3x-x=12+4x

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



3x-x=12+4x
We move all terms to the left:
3x-x-(12+4x)=0
We add all the numbers together, and all the variables
3x-x-(4x+12)=0
We add all the numbers together, and all the variables
2x-(4x+12)=0
We get rid of parentheses
2x-4x-12=0
We add all the numbers together, and all the variables
-2x-12=0
We move all terms containing x to the left, all other terms to the right
-2x=12
x=12/-2
x=-6

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