z+3z=28

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Solution for z+3z=28 equation: 


Simplifying
z + 3z = 28

Combine like terms: z + 3z = 4z
4z = 28

Solving
4z = 28

Solving for variable 'z'.

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

Divide each side by '4'.
z = 7

Simplifying
z = 7

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