А) х+2 2/3 = 6 ; б) 6 5/12 - у=3 1/4

[latex]1) x+2frac{2}{3}=6 \ \ x=6-2 frac{2}{3} \ \ x=5 frac{3}{3}-2 frac{2}{3} \ \ x=3 frac{1}{3} \ \ 2) 6 frac{5}{12}-y=3 frac{1}{4} \ \ -y=3 frac{1}{4}-6 frac{5}{12} \ \ -y=3 frac{3}{12}-6 frac{5}{12} \ \ -y=-3 frac{1}{6} \ \ y=3 frac{1}{6} [/latex]

а)х + 8/3 =6х= 6-8/3х=10/3=3 1/3б) 77/12 - у= 13/4 77/12 - 13/4 =уу=19/6 = 3 1/6