81+k=9

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Solution for 81+k=9 equation: 


Simplifying
81 + k = 9

Solving
81 + k = 9

Solving for variable 'k'.

Move all terms containing k to the left, all other terms to the right.

Add '-81' to each side of the equation.
81 + -81 + k = 9 + -81

Combine like terms: 81 + -81 = 0
0 + k = 9 + -81
k = 9 + -81

Combine like terms: 9 + -81 = -72
k = -72

Simplifying
k = -72

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