-3r-r=6

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Solution for -3r-r=6 equation: 



-3r-r=6

We move all terms to the left:

-3r-r-(6)=0

We add all the numbers together, and all the variables

-4r-6=0

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

-4r=6

r=6/-4

r=-1+1/2

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