30r+7=97

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Solution for 30r+7=97 equation: 



30r+7=97

We move all terms to the left:

30r+7-(97)=0

We add all the numbers together, and all the variables

30r-90=0

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

30r=90

r=90/30

r=3

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