-2r+4=r-5

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Solution for -2r+4=r-5 equation: 



-2r+4=r-5

We move all terms to the left:

-2r+4-(r-5)=0

We get rid of parentheses

-2r-r+5+4=0

We add all the numbers together, and all the variables

-3r+9=0

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

-3r=-9

r=-9/-3

r=+3

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