-8r-5=7-4r

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Solution for -8r-5=7-4r equation: 



-8r-5=7-4r

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

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

We add all the numbers together, and all the variables

-4r-12=0

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

-4r=12

r=12/-4

r=-3

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