3x+72+6x=18

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Solution for 3x+72+6x=18 equation: 



3x+72+6x=18

We move all terms to the left:

3x+72+6x-(18)=0

We add all the numbers together, and all the variables

9x+54=0

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

9x=-54

x=-54/9

x=-6

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