-70=10+8r

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Solution for -70=10+8r equation: 



-70=10+8r

We move all terms to the left:

-70-(10+8r)=0

We add all the numbers together, and all the variables

-(8r+10)-70=0

We get rid of parentheses

-8r-10-70=0

We add all the numbers together, and all the variables

-8r-80=0

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

-8r=80

r=80/-8

r=-10

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