r-2-7=-6.89

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Solution for r-2-7=-6.89 equation: 



r-2-7=-6.89

We move all terms to the left:

r-2-7-(-6.89)=0

We add all the numbers together, and all the variables

r-2.11=0

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

r=2.11

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