7.2=0.4x

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Solution for 7.2=0.4x equation: 



7.2=0.4x

We move all terms to the left:

7.2-(0.4x)=0

We add all the numbers together, and all the variables

-(+0.4x)+7.2=0

We get rid of parentheses

-0.4x+7.2=0

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

-0.4x=-7.2

x=-7.2/-0.4

x=+18

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