-n-25=-4(1+3n)+4n

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Solution for -n-25=-4(1+3n)+4n equation: 



-n-25=-4(1+3n)+4n

We move all terms to the left:

-n-25-(-4(1+3n)+4n)=0

We add all the numbers together, and all the variables

-n-(-4(3n+1)+4n)-25=0

We add all the numbers together, and all the variables

-1n-(-4(3n+1)+4n)-25=0



We calculate terms in parentheses: -(-4(3n+1)+4n), so:

-4(3n+1)+4n

We add all the numbers together, and all the variables

4n-4(3n+1)

We multiply parentheses

4n-12n-4

We add all the numbers together, and all the variables

-8n-4

Back to the equation:

-(-8n-4)



We get rid of parentheses

-1n+8n+4-25=0

We add all the numbers together, and all the variables

7n-21=0

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

7n=21

n=21/7

n=3

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