-18-3=12

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Solution for -18-3=12 equation: 


Simplifying
-18 + -3 = 12

Combine like terms: -18 + -3 = -21
-21 = 12

Solving
-21 = 12

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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