n+3=-18

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Solution for n+3=-18 equation: 


Simplifying
n + 3 = -18

Reorder the terms:
3 + n = -18

Solving
3 + n = -18

Solving for variable 'n'.

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

Add '-3' to each side of the equation.
3 + -3 + n = -18 + -3

Combine like terms: 3 + -3 = 0
0 + n = -18 + -3
n = -18 + -3

Combine like terms: -18 + -3 = -21
n = -21

Simplifying
n = -21

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