tolong di jawab ya mastah2

f(x) = 10x+5
f(x-2) = 10(x-2) +5
f(x-2) = 10x - 20 +5
f(x-2) = 10x -15

jawabannya adalah B

f(x) = 10x + 5
f(x - 2) = 10(x - 2) + 5
f(x - 2) = 10x - 20 + 5
f(x - 2) = 10x - 15
f(x) = 10x - 15 (C)