Respuesta :

Answer: Z=12

12/3=4

4-1=3

Answer:

z = 12

Step-by-step explanation:

Given

[tex]\frac{z}{3}[/tex] - 1 = 3 ( add 1 to both sides )

[tex]\frac{z}{3}[/tex] = 4 ( multiply both sides by 3 to clear the fraction )

z = 12