9+7=7+9

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Solution for 9+7=7+9 equation: 


Simplifying
9 + 7 = 7 + 9

Combine like terms: 9 + 7 = 16
16 = 7 + 9

Combine like terms: 7 + 9 = 16
16 = 16

Add '-16' to each side of the equation.
16 + -16 = 16 + -16

Combine like terms: 16 + -16 = 0
0 = 16 + -16

Combine like terms: 16 + -16 = 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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