3+(12+6)=(3+12)+6

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Solution for 3+(12+6)=(3+12)+6 equation: 


Simplifying
3 + (12 + 6) = (3 + 12) + 6

Combine like terms: 12 + 6 = 18
3 + (18) = (3 + 12) + 6
3 + 18 = (3 + 12) + 6

Combine like terms: 3 + 18 = 21
21 = (3 + 12) + 6

Combine like terms: 3 + 12 = 15
21 = (15) + 6
21 = 15 + 6

Combine like terms: 15 + 6 = 21
21 = 21

Add '-21' to each side of the equation.
21 + -21 = 21 + -21

Combine like terms: 21 + -21 = 0
0 = 21 + -21

Combine like terms: 21 + -21 = 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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