-0.1r-8=0.7r

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Solution for -0.1r-8=0.7r equation: 



-0.1r-8=0.7r

We move all terms to the left:

-0.1r-8-(0.7r)=0

We add all the numbers together, and all the variables

-0.1r-(+0.7r)-8=0

We get rid of parentheses

-0.1r-0.7r-8=0

We add all the numbers together, and all the variables

-0.8r-8=0

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

-0.8r=8

r=8/-0.8

r=-10

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