4-7+(-12-5)=

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Solution for 4-7+(-12-5)= equation: 


Simplifying
4 + -7 + (-12 + -5) = 0

Combine like terms: -12 + -5 = -17
4 + -7 + (-17) = 0
4 + -7 + -17 = 0

Combine like terms: 4 + -7 = -3
-3 + -17 = 0

Combine like terms: -3 + -17 = -20
-20 = 0

Solving
-20 = 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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