51=-3(5n-4)+6(-4-n)

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Solution for 51=-3(5n-4)+6(-4-n) equation: 



51=-3(5n-4)+6(-4-n)

We move all terms to the left:

51-(-3(5n-4)+6(-4-n))=0

We add all the numbers together, and all the variables

-(-3(5n-4)+6(-1n-4))+51=0



We calculate terms in parentheses: -(-3(5n-4)+6(-1n-4)), so:

-3(5n-4)+6(-1n-4)

We multiply parentheses

-15n-6n+12-24

We add all the numbers together, and all the variables

-21n-12

Back to the equation:

-(-21n-12)



We get rid of parentheses

21n+12+51=0

We add all the numbers together, and all the variables

21n+63=0

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

21n=-63

n=-63/21

n=-3

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