18=2x.x

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Solution for 18=2x.x equation: 



18=2x.x

We move all terms to the left:

18-(2x.x)=0

We add all the numbers together, and all the variables

-(+2x.x)+18=0

We get rid of parentheses

-2x.x+18=0

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

-2x.x=-18

x=-18/1

x=-18

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