-4-9+7-12=

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Solution for -4-9+7-12= equation: 


Simplifying
-4 + -9 + 7 + -12 = 0

Combine like terms: -4 + -9 = -13
-13 + 7 + -12 = 0

Combine like terms: -13 + 7 = -6
-6 + -12 = 0

Combine like terms: -6 + -12 = -18
-18 = 0

Solving
-18 = 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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