8(r-7)=5r+4

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Solution for 8(r-7)=5r+4 equation: 



8(r-7)=5r+4

We move all terms to the left:

8(r-7)-(5r+4)=0

We multiply parentheses

8r-(5r+4)-56=0

We get rid of parentheses

8r-5r-4-56=0

We add all the numbers together, and all the variables

3r-60=0

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

3r=60

r=60/3

r=20

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