-7n-4=8-9n

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Solution for -7n-4=8-9n equation: 



-7n-4=8-9n

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

-7n+9n-8-4=0

We add all the numbers together, and all the variables

2n-12=0

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

2n=12

n=12/2

n=6

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