120+0.20x=80+0.30x

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Solution for 120+0.20x=80+0.30x equation: 



120+0.20x=80+0.30x

We move all terms to the left:

120+0.20x-(80+0.30x)=0

We add all the numbers together, and all the variables

0.20x-(0.30x+80)+120=0

We get rid of parentheses

0.20x-0.30x-80+120=0

We add all the numbers together, and all the variables

-0.1x+40=0

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

-0.1x=-40

x=-40/-0.1

x=+400

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