-20=6+4r

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Solution for -20=6+4r equation: 



-20=6+4r

We move all terms to the left:

-20-(6+4r)=0

We add all the numbers together, and all the variables

-(4r+6)-20=0

We get rid of parentheses

-4r-6-20=0

We add all the numbers together, and all the variables

-4r-26=0

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

-4r=26

r=26/-4

r=-6+1/2

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