8(r+2)=80

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Solution for 8(r+2)=80 equation: 



8(r+2)=80

We move all terms to the left:

8(r+2)-(80)=0

We multiply parentheses

8r+16-80=0

We add all the numbers together, and all the variables

8r-64=0

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

8r=64

r=64/8

r=8

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