-2r-4=2r

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Solution for -2r-4=2r equation: 



-2r-4=2r

We move all terms to the left:

-2r-4-(2r)=0

We add all the numbers together, and all the variables

-4r-4=0

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

-4r=4

r=4/-4

r=-1

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