9z-81=0

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Solution for 9z-81=0 equation: 


Simplifying
9z + -81 = 0

Reorder the terms:
-81 + 9z = 0

Solving
-81 + 9z = 0

Solving for variable 'z'.

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

Add '81' to each side of the equation.
-81 + 81 + 9z = 0 + 81

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

Combine like terms: 0 + 81 = 81
9z = 81

Divide each side by '9'.
z = 9

Simplifying
z = 9

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