-9+7-(-28)-13=

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Solution for -9+7-(-28)-13= equation: 


Simplifying
-9 + 7 + -1(-28) + -13 = 0

Multiply -1 * -28
-9 + 7 + 28 + -13 = 0

Combine like terms: -9 + 7 = -2
-2 + 28 + -13 = 0

Combine like terms: -2 + 28 = 26
26 + -13 = 0

Combine like terms: 26 + -13 = 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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