-1-2r+10r=7r-8

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Solution for -1-2r+10r=7r-8 equation: 



-1-2r+10r=7r-8

We move all terms to the left:

-1-2r+10r-(7r-8)=0

We add all the numbers together, and all the variables

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

We get rid of parentheses

8r-7r+8-1=0

We add all the numbers together, and all the variables

r+7=0

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

r=-7

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