7r=5r-8

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Solution for 7r=5r-8 equation: 



7r=5r-8

We move all terms to the left:

7r-(5r-8)=0

We get rid of parentheses

7r-5r+8=0

We add all the numbers together, and all the variables

2r+8=0

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

2r=-8

r=-8/2

r=-4

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