-5+21-17=-1

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Solution for -5+21-17=-1 equation: 


Simplifying
-5 + 21 + -17 = -1

Combine like terms: -5 + 21 = 16
16 + -17 = -1

Combine like terms: 16 + -17 = -1
-1 = -1

Add '1' to each side of the equation.
-1 + 1 = -1 + 1

Combine like terms: -1 + 1 = 0
0 = -1 + 1

Combine like terms: -1 + 1 = 0
0 = 0

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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