Ответ Автор - likalika39 1){6x+5y=6 {6x+5y=6 {2x+y=-2/×-3 {-6x-3y=62y=12y=66x+5×6=66x+30=66x=6-306x=-24x=-8(-8;6)2) {8x-3y=7 {8x-3y=7 {3x+y=9/×3 {9x+3y=2717x=34x=28×2-3y=716-3y=7-3y=7-16-3y=-9y=3(2;3)