3r-5r-11=-7

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Solution for 3r-5r-11=-7 equation: 



3r-5r-11=-7

We move all terms to the left:

3r-5r-11-(-7)=0

We add all the numbers together, and all the variables

-2r-4=0

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

-2r=4

r=4/-2

r=-2

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