3z-z-z=12

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Solution for 3z-z-z=12 equation: 


Simplifying
3z + -1z + -1z = 12

Combine like terms: 3z + -1z = 2z
2z + -1z = 12

Combine like terms: 2z + -1z = 1z
1z = 12

Solving
1z = 12

Solving for variable 'z'.

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

Divide each side by '1'.
z = 12

Simplifying
z = 12

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