(-20)+7+16+(-21)=

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Solution for (-20)+7+16+(-21)= equation: 


Simplifying
(-20) + 7 + 16 + (-21) = 0
-20 + 7 + 16 + (-21) = 0
-20 + 7 + 16 + -21 = 0

Combine like terms: -20 + 7 = -13
-13 + 16 + -21 = 0

Combine like terms: -13 + 16 = 3
3 + -21 = 0

Combine like terms: 3 + -21 = -18
-18 = 0

Solving
-18 = 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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