9z-7z-4z=0

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Solution for 9z-7z-4z=0 equation: 


Simplifying
9z + -7z + -4z = 0

Combine like terms: 9z + -7z = 2z
2z + -4z = 0

Combine like terms: 2z + -4z = -2z
-2z = 0

Solving
-2z = 0

Solving for variable 'z'.

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

Divide each side by '-2'.
z = 0

Simplifying
z = 0

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