9n+18=7n+7

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Solution for 9n+18=7n+7 equation: 



9n+18=7n+7

We move all terms to the left:

9n+18-(7n+7)=0

We get rid of parentheses

9n-7n-7+18=0

We add all the numbers together, and all the variables

2n+11=0

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

2n=-11

n=-11/2

n=-5+1/2

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