-r+10=-8-7r

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Solution for -r+10=-8-7r equation: 



-r+10=-8-7r

We move all terms to the left:

-r+10-(-8-7r)=0

We add all the numbers together, and all the variables

-r-(-7r-8)+10=0

We add all the numbers together, and all the variables

-1r-(-7r-8)+10=0

We get rid of parentheses

-1r+7r+8+10=0

We add all the numbers together, and all the variables

6r+18=0

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

6r=-18

r=-18/6

r=-3

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