6-(-3)=-9

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Solution for 6-(-3)=-9 equation: 


Simplifying
6 + -1(-3) = -9

Multiply -1 * -3
6 + 3 = -9

Combine like terms: 6 + 3 = 9
9 = -9

Solving
9 = -9

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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