.2=x/400

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Solution for .2=x/400 equation: 



.2=x/400

We move all terms to the left:

.2-(x/400)=0

We add all the numbers together, and all the variables

-(+x/400)+.2=0

We add all the numbers together, and all the variables

-(+x/400)+0.2=0

We get rid of parentheses

-x/400+0.2=0

We multiply all the terms by the denominator


-x+(0.2)*400=0

We add all the numbers together, and all the variables

-1x+80=0

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

-x=-80

x=-80/-1

x=+80

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