18=x-20.4

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Solution for 18=x-20.4 equation: 



18=x-20.4

We move all terms to the left:

18-(x-20.4)=0

We get rid of parentheses

-x+20.4+18=0

We add all the numbers together, and all the variables

-1x+38.4=0

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

-x=-38.4

x=-38.4/-1

x=38+0.4/1

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