r/7=20

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Solution for r/7=20 equation: 



r/7=20

We move all terms to the left:

r/7-(20)=0

We multiply all the terms by the denominator


r-20*7=0

We add all the numbers together, and all the variables

r-140=0

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

r=140

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