fungsi f dirumuskan oleh f(3×-2)=4×-7, maka f(7)=

F(3x-2) = 4x-7
F(x) = 4(x/3+2)-7
F(x) = 4x/3 + 8 - 7
F(x) = 4x/3 + 1
F(x) = (4x+3)/3

F(7) = (4.7 + 3)/3
=(28+3)/3
=31/3
=10,33

f(3x - 2) = 4x - 7, f(7) = ....??
3x - 2 = 7 => 3x = 9 => x = 3
f(3x - 2) = 4x - 7
f(3(3) - 2) = 4(3) - 7
f(9 - 2) = 12 - 7
f(7) = 5