Question

11. if f(x) = 3x - 2, find (8) - f(-5)

Answer 1

$f(x)=3x-2$

we need to find f(-5) to replace on the operation

so

$\begin{gathered} f(-5)=3(-5)-2 \\ f(-5)=-15-2 \\ f(-5)=-17 \end{gathered}$

now, do the finall operation

$\begin{gathered} (8)-f(-5) \\ 8-(-17) \\ 8+17 \\ =25 \end{gathered}$

so, the solution is 25