Question

Решите уравнение: 8 9/26 -z=5 7/39

Answer 1

8 9\26 - Z = 5 7\39
217/26-z=202/39
z=202/39- 217/26
z=404/78- 651/78
z=-247/78
z=3 13/78
z=3 1/6

Answer 2

8*9/26 - 5*7/39 = z217/26 - 202/39 = z
39 * 217 - 202 * 26 = z
      26 * 39
8463 - 5252 = z
     1014
z = 3211
      1014