4z-81=z

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Solution for 4z-81=z equation:


Simplifying
4z + -81 = z

Reorder the terms:
-81 + 4z = z

Solving
-81 + 4z = z

Solving for variable 'z'.

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

Add '-1z' to each side of the equation.
-81 + 4z + -1z = z + -1z

Combine like terms: 4z + -1z = 3z
-81 + 3z = z + -1z

Combine like terms: z + -1z = 0
-81 + 3z = 0

Add '81' to each side of the equation.
-81 + 81 + 3z = 0 + 81

Combine like terms: -81 + 81 = 0
0 + 3z = 0 + 81
3z = 0 + 81

Combine like terms: 0 + 81 = 81
3z = 81

Divide each side by '3'.
z = 27

Simplifying
z = 27

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