55=4(3n+7)-5(n-4)

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Solution for 55=4(3n+7)-5(n-4) equation: 



55=4(3n+7)-5(n-4)

We move all terms to the left:

55-(4(3n+7)-5(n-4))=0



We calculate terms in parentheses: -(4(3n+7)-5(n-4)), so:

4(3n+7)-5(n-4)

We multiply parentheses

12n-5n+28+20

We add all the numbers together, and all the variables

7n+48

Back to the equation:

-(7n+48)



We get rid of parentheses

-7n-48+55=0

We add all the numbers together, and all the variables

-7n+7=0

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

-7n=-7

n=-7/-7

n=1

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