Rozwiąż układ równań metodą algebraiczną y-2x=-2 x-3y=7

y-2x=-2 x-3y=7 -2x+y=-2 x-3y=7 /*2 -2x+y=-2 2x -6y = 14 -5y = 12 / : (-5) y = - 5/12 y-2x=-2 -5/12 - 2x = -2 -2x = -2 + 5/12 -2x = -2 i 5/12 /:(-2) x = 1 i 5/24

y-2x=-2 x-3y=7 -2x+y=-2 |*3 x-3y=7 -6x+3y=-6 x-3y=7 5x=1 x=1/5 y-2/5=-2 y=-8/5 y=-1,6 x= 1/5

y=2x-2 x-3(2x-2)=7 x-6x+6=7 -5x=1:-5 x=0.2 y-2(0.2)=-2 y-0.4=-2 y=0.4-2 {y=-1.6 {x=0.2