3z+z=12

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Solution for 3z+z=12 equation: 


Simplifying
3z + z = 12

Combine like terms: 3z + z = 4z
4z = 12

Solving
4z = 12

Solving for variable 'z'.

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

Divide each side by '4'.
z = 3

Simplifying
z = 3

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