4u+3v=14 5u-3v=25 u=14-3v/4 5(14-3v/4)-3v=25 70-15v/4-3v=25 70-15v-12v/4=25 -27v=100-70 -27v=30 v=30/-27 v =-10/9=-1целая 1/9 u=14-3(-10/9)/4 u=13/3=4цел. 1/3
4u+3v=14 5u-3v=25 u=14-3v/4 5(14-3v/4)-3v=25 70-15v/4-3v=25 70-15v-12v/4=25 -27v=100-70 -27v=30 v=30/-27 v =-10/9=-1целая 1/9 u=14-3(-10/9)/4 u=13/3=4цел. 1/3