r-15.5=-3.4

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Solution for r-15.5=-3.4 equation: 



r-15.5=-3.4

We move all terms to the left:

r-15.5-(-3.4)=0

We add all the numbers together, and all the variables

r-12.1=0

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

r=12.1

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