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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

7n-(3n-4)-(4(-1n-5))=0

We get rid of parentheses

7n-3n-(4(-1n-5))+4=0



We calculate terms in parentheses: -(4(-1n-5)), so:

4(-1n-5)

We multiply parentheses

-4n-20

Back to the equation:

-(-4n-20)



We add all the numbers together, and all the variables

4n-(-4n-20)+4=0

We get rid of parentheses

4n+4n+20+4=0

We add all the numbers together, and all the variables

8n+24=0

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

8n=-24

n=-24/8

n=-3

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