-4.2*-3=

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Solution for -4.2*-3= equation: 


Simplifying
-4.2 * -3 = 0

Multiply -4.2 * -3
12.6 = 0

Solving
12.6 = 0

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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