z-4z=8z-9-z

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Solution for z-4z=8z-9-z equation:


Simplifying
z + -4z = 8z + -9 + -1z

Combine like terms: z + -4z = -3z
-3z = 8z + -9 + -1z

Reorder the terms:
-3z = -9 + 8z + -1z

Combine like terms: 8z + -1z = 7z
-3z = -9 + 7z

Solving
-3z = -9 + 7z

Solving for variable 'z'.

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

Add '-7z' to each side of the equation.
-3z + -7z = -9 + 7z + -7z

Combine like terms: -3z + -7z = -10z
-10z = -9 + 7z + -7z

Combine like terms: 7z + -7z = 0
-10z = -9 + 0
-10z = -9

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

Simplifying
z = 0.9

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