2+5r=84

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Solution for 2+5r=84 equation: 



2+5r=84

We move all terms to the left:

2+5r-(84)=0

We add all the numbers together, and all the variables

5r-82=0

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

5r=82

r=82/5

r=16+2/5

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