19.45=8.6r-12.8

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Solution for 19.45=8.6r-12.8 equation: 



19.45=8.6r-12.8

We move all terms to the left:

19.45-(8.6r-12.8)=0

We get rid of parentheses

-8.6r+12.8+19.45=0

We add all the numbers together, and all the variables

-8.6r+32.25=0

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

-8.6r=-32.25

r=-32.25/-8.6

r=3+2.6326530612245/3.5102040816326

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