3(x+6)+3x=84

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Solution for 3(x+6)+3x=84 equation: 



3(x+6)+3x=84

We move all terms to the left:

3(x+6)+3x-(84)=0

We add all the numbers together, and all the variables

3x+3(x+6)-84=0

We multiply parentheses

3x+3x+18-84=0

We add all the numbers together, and all the variables

6x-66=0

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

6x=66

x=66/6

x=11

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