20+(-9)+30+(-9)=

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Solution for 20+(-9)+30+(-9)= equation: 


Simplifying
20 + (-9) + 30 + (-9) = 0
20 + -9 + 30 + (-9) = 0
20 + -9 + 30 + -9 = 0

Combine like terms: 20 + -9 = 11
11 + 30 + -9 = 0

Combine like terms: 11 + 30 = 41
41 + -9 = 0

Combine like terms: 41 + -9 = 32
32 = 0

Solving
32 = 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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