Y:(7 4/5-5 2/3)-3 1/2y=1/4
Y÷(7 4/5-5 2/3)-3 1/2y=1/4 y÷(28/5-10/3)-3/2y=1/4 y÷34/15-3/2y=1/4 y×15/34-3/2y=1/4 15/34y-3/2y=1/4 30y-102y=17 -72y=17 y= -17/72