1x+y=4y 2x+1=2y+5 proszę szybko

x + y = 4y 2x + 1 = 2y + 5 x = 3y 6y + 1 = 2y + 5 x = 3y 6y - 2y = 5 - 1 x = 3y 4y = 4 x = 3 y = 1

1x+y=4y x=3y chyba 2x+1=2y+5 4xy=4/:4 xy=1

x+y=4y 2x+1=2y+5 x=3y 2x-2y=4 x-y=2 3y-y=2 2y=2 y=1 x=3*1 x=3 x=3 y=1 ;)