(-3-12)-(-40)=

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Solution for (-3-12)-(-40)= equation: 


Simplifying
(-3 + -12) + -1(-40) = 0

Combine like terms: -3 + -12 = -15
(-15) + -1(-40) = 0
-15 + -1(-40) = 0

Multiply -1 * -40
-15 + 40 = 0

Combine like terms: -15 + 40 = 25
25 = 0

Solving
25 = 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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