Respuesta :

semsee45

Answer:

[tex]\frac{18z-2}{3} [/tex]

Step-by-step explanation:

see attached for step-by-step

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hf0028321

Step-by-step explanation:

[tex] \frac{20z - 1}{3} - \frac{8z + 4}{12} \\ = \frac{12(20z - 1) - 3(8z + 4)}{12 \times 3} \\ \frac{240z - 12 - 24z - 12}{36} \\ = \frac{216z - 24}{36} \\ = 6z - \frac{2}{3} [/tex]