2 1/3х +1 1/2=1 2/3x+ 2 1/3
1) 2 1/3*х+1 1/2=1 2/3*х+2 1/3 2 1/3*х-1 2/3*х=2 1/3-1 1/2 3 3/3*х=7/3-3/2 4х=14/6-9/6 4х=5/3 х=5/3:4=5/3:4/1=5/3*1/4=5/12 х=5/12.