5r-16=-7r+20

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Solution for 5r-16=-7r+20 equation: 



5r-16=-7r+20

We move all terms to the left:

5r-16-(-7r+20)=0

We get rid of parentheses

5r+7r-20-16=0

We add all the numbers together, and all the variables

12r-36=0

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

12r=36

r=36/12

r=3

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