r+2.8=6.7

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Solution for r+2.8=6.7 equation: 



r+2.8=6.7

We move all terms to the left:

r+2.8-(6.7)=0

We add all the numbers together, and all the variables

r-3.9=0

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

r=3.9

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