-0.2r-3.1=0.8r+6.4

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Solution for -0.2r-3.1=0.8r+6.4 equation: 



-0.2r-3.1=0.8r+6.4

We move all terms to the left:

-0.2r-3.1-(0.8r+6.4)=0

We get rid of parentheses

-0.2r-0.8r-6.4-3.1=0

We add all the numbers together, and all the variables

-1r-9.5=0

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

-r=9.5

r=9.5/-1

r=-9+0.5/1

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