Diberikan suati fungsi f(x) =3x+9.jika f(k) =33,maka k=

3k + 9 =33
3k = 33 - 9
3k = 24
k = 24 / 3
k=8

[tex]f(x) = 3x + 9 \\ f(k) = 33 \\ f(k) = 3k + 9 \\ 33 = 3k + 9 \\ 33 - 9 = 3k \\ 24 = 3k \\ 24 \div 3 = k \\ 8 = k[/tex]
ini ya jawabannya maaf kalo salah