Решить уравнения:x/9 - 7/9 = 3 7/95 4/15 - x/15 =

x/9 - 7/9 = 3 7/95;

х/9 = 3 7/95 + 7/9;

х/9 = 292/95 + 7/9;

х/9 = (292 * 9 + 7 * 95)/855;

х/9 = (2628 + 665)/855;

х/9 = 3293/855;

855х = 29637;

х = 29637 : 855;

х = 34 567/855.

Ответ: 34 567/855.

4/15 - x/15 = 4 7/153;

х/15 = 4/15 - 4 7/153;

х/15 = 4/15 - 619/153;

х/15 = (4 * 51 - 619 * 5)/765;

х/15 = (204 - 3095)/765;

х/15 = 2891/765;

765х = 43365;

153х = 8673;

х = 8673 : 153;

х = 56 105/153.

Ответ: 56 105/153.

18/19 + x/19 = 15/19;

х/19 = 15/19 - 18/19;

х/19 = -3/19;

19х = -57;

х = -3.

Ответ: -3.