9(9+n)-7(8n-4)=77

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Solution for 9(9+n)-7(8n-4)=77 equation: 



9(9+n)-7(8n-4)=77

We move all terms to the left:

9(9+n)-7(8n-4)-(77)=0

We add all the numbers together, and all the variables

9(n+9)-7(8n-4)-77=0

We multiply parentheses

9n-56n+81+28-77=0

We add all the numbers together, and all the variables

-47n+32=0

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

-47n=-32

n=-32/-47

n=32/47

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