15+5-20=

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Solution for 15+5-20= equation: 


Simplifying
15 + 5 + -20 = 0

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

Combine like terms: 20 + -20 = 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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