r-8.9=19.12

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Solution for r-8.9=19.12 equation: 



r-8.9=19.12

We move all terms to the left:

r-8.9-(19.12)=0

We add all the numbers together, and all the variables

r-28.02=0

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

r=28.02

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