Tolong bantu jawab ya​

Penjelasan dengan langkah-langkah:

f(x) = 7x + 5

Maka,

f (2) = 7 (2) + 5 = 14 + 5 = 19

f (x-2) = 7 (x-2) + 5 = 7x – 14 + 5 = 7x – 9

f (2x) = 7 (2x) + 5 = 14x + 5

3 f(x) + 2 = 3 (7x+5) + 2 = 21x + 15 + 2 = 21x + 17

f (-3) = 3 (-3) + 5 = -9 + 5 = -4