(4+12)+9=(12+4)+9

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Solution for (4+12)+9=(12+4)+9 equation: 


Simplifying
(4 + 12) + 9 = (12 + 4) + 9

Combine like terms: 4 + 12 = 16
(16) + 9 = (12 + 4) + 9
16 + 9 = (12 + 4) + 9

Combine like terms: 16 + 9 = 25
25 = (12 + 4) + 9

Combine like terms: 12 + 4 = 16
25 = (16) + 9
25 = 16 + 9

Combine like terms: 16 + 9 = 25
25 = 25

Add '-25' to each side of the equation.
25 + -25 = 25 + -25

Combine like terms: 25 + -25 = 0
0 = 25 + -25

Combine like terms: 25 + -25 = 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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