-5r+1-5=8-7r

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Solution for -5r+1-5=8-7r equation: 



-5r+1-5=8-7r

We move all terms to the left:

-5r+1-5-(8-7r)=0

We add all the numbers together, and all the variables

-5r-(-7r+8)+1-5=0

We add all the numbers together, and all the variables

-5r-(-7r+8)-4=0

We get rid of parentheses

-5r+7r-8-4=0

We add all the numbers together, and all the variables

2r-12=0

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

2r=12

r=12/2

r=6

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