tolong bantuan ya kakak

f(x+2) = 5-4x
f(-3), berarti -3 = x + 2
x = -3 -2 = -5, jadi x = -5
masukkan kembali ke persamaan f(x+2) = 5-4x, maka
f(-3) = f(-5+2) = 5 - 4(-5) = 5 + 20 = 25