12x=72+3x

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Solution for 12x=72+3x equation: 



12x=72+3x

We move all terms to the left:

12x-(72+3x)=0

We add all the numbers together, and all the variables

12x-(3x+72)=0

We get rid of parentheses

12x-3x-72=0

We add all the numbers together, and all the variables

9x-72=0

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

9x=72

x=72/9

x=8

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