dikwtahui fungsi f(5x+2) = 10x-3 maka nilai f(-8) =

f(5x+2) = 10x-3
f(-8) ??

maka
5x+2 = -8
5x = -10
x = -2

f(-8)= 10(-2) -3
f(-8)= -20 -3 = -23

semoga membantu ^^

5x + 2 = -8
5x = -10
x = -2

f(-8)
= 10(-2) -3
= -20-3
= -23