-40-30+(-31)-(-12)=

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Solution for -40-30+(-31)-(-12)= equation: 


Simplifying
-40 + -30 + (-31) + -1(-12) = 0
-40 + -30 + -31 + -1(-12) = 0

Multiply -1 * -12
-40 + -30 + -31 + 12 = 0

Combine like terms: -40 + -30 = -70
-70 + -31 + 12 = 0

Combine like terms: -70 + -31 = -101
-101 + 12 = 0

Combine like terms: -101 + 12 = -89
-89 = 0

Solving
-89 = 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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