8r-8=72

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Solution for 8r-8=72 equation: 



8r-8=72

We move all terms to the left:

8r-8-(72)=0

We add all the numbers together, and all the variables

8r-80=0

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

8r=80

r=80/8

r=10

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