решите уравнения a) 9/z=2 б) 22 6/43-y=14 7/15+2 8/15

9/z = 2z = 9/2 = 4 1/222 6/43 - у = 14 7/15 + 2 8/1522 6/43 - у = 16 15/1522 6/43 - у = 17у = 22 6/43 - 17у = 22 6/43 - 731/43у = 952/43 - 731/43у = 221/43у = 5 6/43