9z=8z-4

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Solution for 9z=8z-4 equation: 


Simplifying
9z = 8z + -4

Reorder the terms:
9z = -4 + 8z

Solving
9z = -4 + 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.
9z + -8z = -4 + 8z + -8z

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

Combine like terms: 8z + -8z = 0
1z = -4 + 0
1z = -4

Divide each side by '1'.
z = -4

Simplifying
z = -4

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