N-4n=21

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Solution for N-4n=21 equation: 


Simplifying
N + -4n = 21

Solving
N + -4n = 21

Solving for variable 'N'.

Move all terms containing N to the left, all other terms to the right.

Add '4n' to each side of the equation.
N + -4n + 4n = 21 + 4n

Combine like terms: -4n + 4n = 0
N + 0 = 21 + 4n
N = 21 + 4n

Simplifying
N = 21 + 4n

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