5r+7=r+31

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Solution for 5r+7=r+31 equation: 



5r+7=r+31

We move all terms to the left:

5r+7-(r+31)=0

We get rid of parentheses

5r-r-31+7=0

We add all the numbers together, and all the variables

4r-24=0

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

4r=24

r=24/4

r=6

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