dik g(x)=2x-5 fog(x)= 6x-13 maka f(x)=?

Langsung aja y

(fog)(x) = f{g(x)}
6x - 13 = f(2x - 5)

misal :
2x - 5 = a
x = a+5 / 2

soal menjadi →
f(a) = 6(a+5 / 2) - 13
f(a) = 3(a+5) - 13
f(a) = 3a + 15 - 13
f(a) = 3a + 2

f(x) = 3x + 2

Semoga berguna +_+