Answer:
f(2x+5)=6x+8
Explanation:
Given the function f(x) defined below:
[tex]f(x)=3x-7[/tex]We are required to evaluate f(2x+5).
To do this, we substitute x in f(x) with 2x+5.
[tex]\begin{gathered} f(x)=3x-7 \\ f(2x+5)=3(2x+5)-7 \end{gathered}[/tex]We can then simplify:
[tex]\begin{gathered} f(2x+5)=6x+15-7 \\ =6x+8 \end{gathered}[/tex]