Rozwiąż równanie: x=y+1 2x=5x-4y

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

x=y+1 2x=5x-4y x=y+1 -3x=-4y -3(y+1)=-4y -3y-3=-4y y=3 x=3+1 x=4