6-12-(-9)=

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Solution for 6-12-(-9)= equation: 


Simplifying
6 + -12 + -1(-9) = 0

Multiply -1 * -9
6 + -12 + 9 = 0

Combine like terms: 6 + -12 = -6
-6 + 9 = 0

Combine like terms: -6 + 9 = 3
3 = 0

Solving
3 = 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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