-7r=-4-8r

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



-7r=-4-8r

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

-7r+8r+4=0

We add all the numbers together, and all the variables

r+4=0

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

r=-4

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