z+2z=9

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Solution for z+2z=9 equation: 


Simplifying
z + 2z = 9

Combine like terms: z + 2z = 3z
3z = 9

Solving
3z = 9

Solving for variable 'z'.

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

Divide each side by '3'.
z = 3

Simplifying
z = 3

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