Question

F(3x+2)=4x+5
f(x)=......?

Answer 1

F(3x+2)=4x+5
misalkan 3x+2=y maka x= (y-2)/3
f(y) = 4((y-2)/3)+5
f(y) =4y/3 -8/3 + 5
f(y) = 4y/3 + 7/3
maka kalau
f(x) = 4x/3 + 7/3