-30+30-40=

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Solution for -30+30-40= equation: 


Simplifying
-30 + 30 + -40 = 0

Combine like terms: -30 + 30 = 0
0 + -40 = 0
-40 = 0

Solving
-40 = 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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