80+.40x=20+.70x

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Solution for 80+.40x=20+.70x equation: 



80+.40x=20+.70x

We move all terms to the left:

80+.40x-(20+.70x)=0

We add all the numbers together, and all the variables

.40x-(.70x+20)+80=0

We get rid of parentheses

.40x-.70x-20+80=0

We add all the numbers together, and all the variables

-0.3x+60=0

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

-0.3x=-60

x=-60/-0.3

x=+200

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