18=0.9x

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Solution for 18=0.9x equation: 



18=0.9x

We move all terms to the left:

18-(0.9x)=0

We add all the numbers together, and all the variables

-(+0.9x)+18=0

We get rid of parentheses

-0.9x+18=0

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

-0.9x=-18

x=-18/-0.9

x=+20

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