-3x=6x+18

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Solution for -3x=6x+18 equation: 



-3x=6x+18

We move all terms to the left:

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

We get rid of parentheses

-3x-6x-18=0

We add all the numbers together, and all the variables

-9x-18=0

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

-9x=18

x=18/-9

x=-2

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