$x:(9$$\dfrac{1}{2}$ $-$$\dfrac{3}{2}$$)=$$\frac{0,4+\dfrac{2}{9} -\dfrac{2}{11}}{1,6+\dfrac{8}{9} -\dfrac{8}{11}}$
⇒$x:8$$=$$\frac{0,4+\dfrac{2}{9} -\dfrac{2}{11}}{(0,4+\dfrac{2}{9} -\dfrac{2}{11}).4}$
⇒$x:8$$=$$\dfrac{1}{4}$
⇒`x``=`$\dfrac{1}{4}$ .`8`
⇒`x=2`
Vậy `x=2`