93-12=81

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Solution for 93-12=81 equation: 


Simplifying
93 + -12 = 81

Combine like terms: 93 + -12 = 81
81 = 81

Add '-81' to each side of the equation.
81 + -81 = 81 + -81

Combine like terms: 81 + -81 = 0
0 = 81 + -81

Combine like terms: 81 + -81 = 0
0 = 0

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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