Respuesta :

replace f(x) wih y
switch all x wih y and y with x
solve for y
replace y with h(x)

f(x)=5/3x-2/7
y=5/3x-2/7
x=5/3y-2/7
x+2/7=5/3y
[3(x+2/7)]/5=y
(3x+6/7)/5=y
(21x+6)/35=y
(21x+6)/35=h(x)


h(x)=(21x+6)/35

last option is correct