8 9/26 - z = 5 7/39 Решите пожалуйсто
Z=8 9/26 - 5 7/39 z= 8 27/78 - 5 14/78 z= 3 13/78 z= 3 1/6
8 9/26-z=5 7/39
z= 8 9/26-5 7/39 = 217/26-202/39=(651-404)/78=247/78
z=247/78
z=3 1/6