fungsi f dinyatakan f(x+2) = 8x - 7 Nilai f(5) adalah.. (caranya jga yaak)

x+2 = 5
x = 5-2
x=3

f(5) = 8x-7
= 8.3-7
= 24-7
= 17

Langsung aja y

Misal :
x+2 = a
x = a - 2

Soal menjadi
f(a) = 8(a-2) - 7
f(a) = 8a - 16 - 7
f(a) = 8a - 23

f(5) = 8(5) - 23
f(5) = 40 - 23
f(5) = 17

Semoga berguna +_+