x+8:5=20_ x-6:2=4_ x +1 : 3= -2

x+8/5=20 / *5 5x+5*8/5=20*5 5x+8=100/-8 5x=92/ :5 x=18,4 x-6/2=4 x-3=4/+3 x=7 x+1/3=-2/*3 3x+1=-6 /-1 3x=-7/3 x= - 2 1/3

x+8:5=20 x+8/5=20 x=20-8/5 x=20-1 i 3/5 x=19 i 5/5-1 i 3/5 x=18 i 2/5 x-6:2=4 x-3=4 x=4+3 x=7 x+1:3=-2 x+1/3=-2 x=-2-1/3 x=-2 i 1/3