9n=7n-1

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Solution for 9n=7n-1 equation: 



9n=7n-1

We move all terms to the left:

9n-(7n-1)=0

We get rid of parentheses

9n-7n+1=0

We add all the numbers together, and all the variables

2n+1=0

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

2n=-1

n=-1/2

n=-1/2

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