Diketahui fungsi f(x) = 5x-3 dan fungsi f(k) = 18 nilai k adalahhh…. pakai cara ya kak

FUNGSI

f(x) = 5x – 3

f(k) = 18

Maka

5k – 3 = 18

5k = 18 + 3

5k = 21

k = 21/5

Jadi nilai k = 21/5