8o+15=5o+21

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Solution for 8o+15=5o+21 equation: 



8o+15=5o+21

We move all terms to the left:

8o+15-(5o+21)=0

We get rid of parentheses

8o-5o-21+15=0

We add all the numbers together, and all the variables

3o-6=0

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

3o=6

o=6/3

o=2

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