6x+2(-6x+21)=-18

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Solution for 6x+2(-6x+21)=-18 equation: 



6x+2(-6x+21)=-18

We move all terms to the left:

6x+2(-6x+21)-(-18)=0

We add all the numbers together, and all the variables

6x+2(-6x+21)+18=0

We multiply parentheses

6x-12x+42+18=0

We add all the numbers together, and all the variables

-6x+60=0

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

-6x=-60

x=-60/-6

x=+10

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