x/25:1.5:5/5 x/25*5=1.5*5x/5=7.5x=37.55/9:x=14:5.65/9:x=1:0.4x=5/9*0.4x=2/96x+1.3*5=7.7 6x+6.5=7.76x=7.7-6.56x=1.2x=1.2/6x=0.22/3x+1/5=3.92/3x=3.9-0.22/3x=3.7x=3.7*3/2x=5.55