jika g(x) = 3x + 5 per x - 3 tentukan b jika f(b) = 4

g(x) = (3x + 5)/(x - 3)
g(b) = 4, b = ?

g(b) = 4
(3b + 5)/(b - 3) = 4
3b + 5 = 4(b - 3)
3b + 5 = 4b - 12
3b - 4b = -12 - 5
-b = -17
b = -17/-1 = 17

maaf kalau salah
semoga membantu