Madalinbacu Madalinbacu 12-04-2022 Matematică a fost răspuns 5. Rezolvați prin metoda substituției sistemele: (2x+y=0 a) [ 41x – 2y=0 (x-3y=7 b) [x-y=-1 (2x + y=-7 e) (x-2y=-8 x f) (3x – 4y=-5 [3x+4y=-4 (2x+3y=-3 += |-x+2y=5 (3x – 4y=-15 |2x - y = -5 (- (2x- y=-1 |3x - 2y=0 (4x -5y=23 - = (3x - y=9 g) h)Va rog dau coroana urgentttttt??