6+x+2x=12

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Solution for 6+x+2x=12 equation:



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

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