Answer:
The value of the expression is;
[tex]8[/tex]
Explanation:
Given the expression;
[tex]3z-1[/tex]
When z=3, let us substitute z=3 into the expression;
[tex]\begin{gathered} 3z-1 \\ 3(3)-1 \\ 9-1 \\ =8 \end{gathered}[/tex]
Therefore, the value of the expression is;
[tex]8[/tex]
