7r-7=5r+9

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Solution for 7r-7=5r+9 equation: 



7r-7=5r+9

We move all terms to the left:

7r-7-(5r+9)=0

We get rid of parentheses

7r-5r-9-7=0

We add all the numbers together, and all the variables

2r-16=0

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

2r=16

r=16/2

r=8

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