Уравнения:

а) (50 х-85) : 9+48=83

б) 222 - (560:у+43) = 99

a) (50 х-85) : 9+48=83 б) 222 - (560:у+43) = 99

50x-85+432=747 222 - (560/x+43) = 99

50x+347=747 222-560/x-43=99

50x=747-347 179-560/x=99

50x=400 - 560/x=99-179

x=8 - 560/x=-80

-560=-80x

-80x=-560

x=7