6x+12x=756

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Solution for 6x+12x=756 equation: 



6x+12x=756

We move all terms to the left:

6x+12x-(756)=0

We add all the numbers together, and all the variables

18x-756=0

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

18x=756

x=756/18

x=42

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