20+-21+15+-6=

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Solution for 20+-21+15+-6= equation: 


Simplifying
20 + -21 + 15 + -6 = 0

Combine like terms: 20 + -21 = -1
-1 + 15 + -6 = 0

Combine like terms: -1 + 15 = 14
14 + -6 = 0

Combine like terms: 14 + -6 = 8
8 = 0

Solving
8 = 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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