z-3z=9z-9-z

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Solution for z-3z=9z-9-z equation: 


Simplifying
z + -3z = 9z + -9 + -1z

Combine like terms: z + -3z = -2z
-2z = 9z + -9 + -1z

Reorder the terms:
-2z = -9 + 9z + -1z

Combine like terms: 9z + -1z = 8z
-2z = -9 + 8z

Solving
-2z = -9 + 8z

Solving for variable 'z'.

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

Add '-8z' to each side of the equation.
-2z + -8z = -9 + 8z + -8z

Combine like terms: -2z + -8z = -10z
-10z = -9 + 8z + -8z

Combine like terms: 8z + -8z = 0
-10z = -9 + 0
-10z = -9

Divide each side by '-10'.
z = 0.9

Simplifying
z = 0.9

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