N+21=13

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Solution for N+21=13 equation:


Simplifying
N + 21 = 13

Reorder the terms:
21 + N = 13

Solving
21 + N = 13

Solving for variable 'N'.

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

Add '-21' to each side of the equation.
21 + -21 + N = 13 + -21

Combine like terms: 21 + -21 = 0
0 + N = 13 + -21
N = 13 + -21

Combine like terms: 13 + -21 = -8
N = -8

Simplifying
N = -8

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