70+.8x=50+.9x

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Solution for 70+.8x=50+.9x equation: 



70+.8x=50+.9x

We move all terms to the left:

70+.8x-(50+.9x)=0

We add all the numbers together, and all the variables

.8x-(.9x+50)+70=0

We get rid of parentheses

.8x-.9x-50+70=0

We add all the numbers together, and all the variables

-0.1x+20=0

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

-0.1x=-20

x=-20/-0.1

x=+200

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