21+15=36

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Solution for 21+15=36 equation: 


Simplifying
21 + 15 = 36

Combine like terms: 21 + 15 = 36
36 = 36

Add '-36' to each side of the equation.
36 + -36 = 36 + -36

Combine like terms: 36 + -36 = 0
0 = 36 + -36

Combine like terms: 36 + -36 = 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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