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

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Solution for -(1-5n)=-3(7-3n) equation: 



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

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



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

-3(-3n+7)

We multiply parentheses

9n-21

Back to the equation:

-(9n-21)



We get rid of parentheses

5n-9n+21-1=0

We add all the numbers together, and all the variables

-4n+20=0

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

-4n=-20

n=-20/-4

n=+5

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