4.2=0.1x

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Solution for 4.2=0.1x equation: 



4.2=0.1x

We move all terms to the left:

4.2-(0.1x)=0

We add all the numbers together, and all the variables

-(+0.1x)+4.2=0

We get rid of parentheses

-0.1x+4.2=0

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

-0.1x=-4.2

x=-4.2/-0.1

x=+42

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