3x+2(-9+3x/2)=18

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Solution for 3x+2(-9+3x/2)=18 equation: 



3x+2(-9+3x/2)=18

We move all terms to the left:

3x+2(-9+3x/2)-(18)=0

We add all the numbers together, and all the variables

3x+2(3x/2-9)-18=0

We multiply parentheses

3x+6x-18-18=0

We add all the numbers together, and all the variables

9x-36=0

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

9x=36

x=36/9

x=4

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