3(x+2x)=135

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Solution for 3(x+2x)=135 equation: 



3(x+2x)=135

We move all terms to the left:

3(x+2x)-(135)=0

We add all the numbers together, and all the variables

3(+3x)-135=0

We multiply parentheses

9x-135=0

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

9x=135

x=135/9

x=15

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