9(13-4)=81

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Solution for 9(13-4)=81 equation: 


Simplifying
9(13 + -4) = 81

Combine like terms: 13 + -4 = 9
9(9) = 81

Multiply 9 * 9
81 = 81

Add '-81' to each side of the equation.
81 + -81 = 81 + -81

Combine like terms: 81 + -81 = 0
0 = 81 + -81

Combine like terms: 81 + -81 = 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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