10n-9=99

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Solution for 10n-9=99 equation: 



10n-9=99

We move all terms to the left:

10n-9-(99)=0

We add all the numbers together, and all the variables

10n-108=0

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

10n=108

n=108/10

n=10+4/5

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