9(n+3)+9=90

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Solution for 9(n+3)+9=90 equation: 



9(n+3)+9=90

We move all terms to the left:

9(n+3)+9-(90)=0

We add all the numbers together, and all the variables

9(n+3)-81=0

We multiply parentheses

9n+27-81=0

We add all the numbers together, and all the variables

9n-54=0

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

9n=54

n=54/9

n=6

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