1) (х+4 9/11)-5 6/11)-5 6/11=1 8/11 2)13 2/9-(7 5/9+у)= 3 5/9

1) (х + 4 9/11) - 2 * 5 6/11 = 1 8/11;

х + (44 + 9)/11 - 2 * (55 + 6)/11 = (11 + 8)/11;

х = 19/11 + 2 * 61/11 - 53/11 = (19 + 2 * 61 - 53)/11 = 88/11 = 8;

Ответ: х = 8.

2) 13 2/9 - (7 5/9 + у) = 3 5/9;

(13 * 9 + 2)/9 - (7 * 9 + 5)/9 - у = (3 * 9 + 5)/9;

у = 119/9 - 68/9 - 32/9 = (119 - 68 - 32)/9 = 19/9;

Ответ: у = 19/9.