7n-4=8(n-1)

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Solution for 7n-4=8(n-1) equation: 



7n-4=8(n-1)

We move all terms to the left:

7n-4-(8(n-1))=0



We calculate terms in parentheses: -(8(n-1)), so:

8(n-1)

We multiply parentheses

8n-8

Back to the equation:

-(8n-8)



We get rid of parentheses

7n-8n+8-4=0

We add all the numbers together, and all the variables

-1n+4=0

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

-n=-4

n=-4/-1

n=+4

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