5r+7=8r+16

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Solution for 5r+7=8r+16 equation: 



5r+7=8r+16

We move all terms to the left:

5r+7-(8r+16)=0

We get rid of parentheses

5r-8r-16+7=0

We add all the numbers together, and all the variables

-3r-9=0

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

-3r=9

r=9/-3

r=-3

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