-2r-4=-3r

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Solution for -2r-4=-3r equation: 



-2r-4=-3r

We move all terms to the left:

-2r-4-(-3r)=0

We get rid of parentheses

-2r+3r-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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