n+(-n)=3+15

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Solution for n+(-n)=3+15 equation: 


Simplifying
n + (-1n) = 3 + 15

Combine like terms: n + (-1n) = 0
0 = 3 + 15

Combine like terms: 3 + 15 = 18
0 = 18

Solving
0 = 18

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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