17y-y=1616 и y+19y =4040

Question

17y-y=1616 и y+19y =4040

Answer 1

17у-у = 1616              у+19у = 4040

16у = 1616                    20у = 4040

у = 1616:16                   у = 4040:20

у = 101                          у = 202