3.9=5.1+0.2x

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Solution for 3.9=5.1+0.2x equation: 



3.9=5.1+0.2x

We move all terms to the left:

3.9-(5.1+0.2x)=0

We add all the numbers together, and all the variables

-(0.2x+5.1)+3.9=0

We get rid of parentheses

-0.2x-5.1+3.9=0

We add all the numbers together, and all the variables

-0.2x-1.2=0

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

-0.2x=1.2

x=1.2/-0.2

x=-5+0.2/0.2

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