3(x+2x)=72

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Solution for 3(x+2x)=72 equation: 



3(x+2x)=72

We move all terms to the left:

3(x+2x)-(72)=0

We add all the numbers together, and all the variables

3(+3x)-72=0

We multiply parentheses

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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