-20+5+(-7)+9=

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Solution for -20+5+(-7)+9= equation: 


Simplifying
-20 + 5 + (-7) + 9 = 0
-20 + 5 + -7 + 9 = 0

Combine like terms: -20 + 5 = -15
-15 + -7 + 9 = 0

Combine like terms: -15 + -7 = -22
-22 + 9 = 0

Combine like terms: -22 + 9 = -13
-13 = 0

Solving
-13 = 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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