-3(1+6x)-3x=18

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Solution for -3(1+6x)-3x=18 equation: 



-3(1+6x)-3x=18

We move all terms to the left:

-3(1+6x)-3x-(18)=0

We add all the numbers together, and all the variables

-3(6x+1)-3x-18=0

We add all the numbers together, and all the variables

-3x-3(6x+1)-18=0

We multiply parentheses

-3x-18x-3-18=0

We add all the numbers together, and all the variables

-21x-21=0

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

-21x=21

x=21/-21

x=-1

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