2z-4z=18

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Solution for 2z-4z=18 equation: 


Simplifying
2z + -4z = 18

Combine like terms: 2z + -4z = -2z
-2z = 18

Solving
-2z = 18

Solving for variable 'z'.

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

Divide each side by '-2'.
z = -9

Simplifying
z = -9

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