решите уравнение x :23 = 5/85 + 17/85
x:42=38/73-29/73

спс

x :23 = 5/85 + 17/85 х:23=22/85х=22/85*23х=506/85=5, 81/85x:42=38/73-29/73х:42=9/73х=9/73*42х=378/73=5, 13/73