N+42=81

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Solution for N+42=81 equation: 


Simplifying
N + 42 = 81

Reorder the terms:
42 + N = 81

Solving
42 + N = 81

Solving for variable 'N'.

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

Add '-42' to each side of the equation.
42 + -42 + N = 81 + -42

Combine like terms: 42 + -42 = 0
0 + N = 81 + -42
N = 81 + -42

Combine like terms: 81 + -42 = 39
N = 39

Simplifying
N = 39

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