Respuesta :
dur
one way is solve for x
times 3 both sides
x=21/9=7/3
3/x=3/(7/3)=(3/1)(3/7)=9/7
one way is solve for x
times 3 both sides
x=21/9=7/3
3/x=3/(7/3)=(3/1)(3/7)=9/7