z-5z=9z-9-12

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Solution for z-5z=9z-9-12 equation:


Simplifying
z + -5z = 9z + -9 + -12

Combine like terms: z + -5z = -4z
-4z = 9z + -9 + -12

Reorder the terms:
-4z = -9 + -12 + 9z

Combine like terms: -9 + -12 = -21
-4z = -21 + 9z

Solving
-4z = -21 + 9z

Solving for variable 'z'.

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

Add '-9z' to each side of the equation.
-4z + -9z = -21 + 9z + -9z

Combine like terms: -4z + -9z = -13z
-13z = -21 + 9z + -9z

Combine like terms: 9z + -9z = 0
-13z = -21 + 0
-13z = -21

Divide each side by '-13'.
z = 1.615384615

Simplifying
z = 1.615384615

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