12-n=15-n

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Solution for 12-n=15-n equation: 


Simplifying
12 + -1n = 15 + -1n

Add 'n' to each side of the equation.
12 + -1n + n = 15 + -1n + n

Combine like terms: -1n + n = 0
12 + 0 = 15 + -1n + n
12 = 15 + -1n + n

Combine like terms: -1n + n = 0
12 = 15 + 0
12 = 15

Solving
12 = 15

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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