r-2-8r=-16

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Solution for r-2-8r=-16 equation: 



r-2-8r=-16

We move all terms to the left:

r-2-8r-(-16)=0

We add all the numbers together, and all the variables

-7r+14=0

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

-7r=-14

r=-14/-7

r=+2

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