Answer:
[tex]f(m - 1) = 6m - 1[/tex]
Step-by-step explanation:
"a" is replaced by "m-1". Thus
a = m - 1
Substitute it into the equation to get:
[tex]f(m - 1) = 6(m - 1) + 5[/tex]
[tex]f(m - 1) = 6m - 6 + 5[/tex]
