30=9.00+0.20x

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Solution for 30=9.00+0.20x equation: 



30=9.00+0.20x

We move all terms to the left:

30-(9.00+0.20x)=0

We add all the numbers together, and all the variables

-(0.20x+9)+30=0

We get rid of parentheses

-0.20x-9+30=0

We add all the numbers together, and all the variables

-0.2x+21=0

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

-0.2x=-21

x=-21/-0.2

x=+105

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