-42=6(5-4n)-(n-3)

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Solution for -42=6(5-4n)-(n-3) equation: 



-42=6(5-4n)-(n-3)

We move all terms to the left:

-42-(6(5-4n)-(n-3))=0

We add all the numbers together, and all the variables

-(6(-4n+5)-(n-3))-42=0



We calculate terms in parentheses: -(6(-4n+5)-(n-3)), so:

6(-4n+5)-(n-3)

We multiply parentheses

-24n-(n-3)+30

We get rid of parentheses

-24n-n+3+30

We add all the numbers together, and all the variables

-25n+33

Back to the equation:

-(-25n+33)



We get rid of parentheses

25n-33-42=0

We add all the numbers together, and all the variables

25n-75=0

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

25n=75

n=75/25

n=3

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