5r-7=2

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Solution for 5r-7=2 equation: 



5r-7=2

We move all terms to the left:

5r-7-(2)=0

We add all the numbers together, and all the variables

5r-9=0

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

5r=9

r=9/5

r=1+4/5

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