-4r+2=82

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Solution for -4r+2=82 equation: 



-4r+2=82

We move all terms to the left:

-4r+2-(82)=0

We add all the numbers together, and all the variables

-4r-80=0

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

-4r=80

r=80/-4

r=-20

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