N+3-7=0

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Solution for N+3-7=0 equation: 


Simplifying
N + 3 + -7 = 0

Reorder the terms:
3 + -7 + N = 0

Combine like terms: 3 + -7 = -4
-4 + N = 0

Solving
-4 + N = 0

Solving for variable 'N'.

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

Add '4' to each side of the equation.
-4 + 4 + N = 0 + 4

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

Combine like terms: 0 + 4 = 4
N = 4

Simplifying
N = 4

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