bungen: Gleichungssysteme mit 3 Unbekannten1(1) 2x + 8y + 14z =178(2) 7x + y + 4z = 74(3) 4y + 7y + z =772(1) 14x - 6y - 22z = 76(2) 18x + 4y -120z = 8(3) 2x - 2y -2z = 43(1) x + y =12(2) x + z = 10(3) y + z = 18

4(1) 6x - 2y = 22(2) 5z + 7y = 33(3) 16z - 14x = -545(1) 2x + 3y - z = 5(2) 4x - y + 5z = 17(3) -x + 6y + 7z = 326(1) 2y - 8x - z + 13 =0(2) 2y = -4x + 3z + 23(3) y - z = 2

7(1) x + y + z = 9(2) x + 2y + 3z = 14(3) x + 3y + 6z =208(1) x + y + z = 50(2) x : y = 2 : 1(3) 2 y : z =1 : 19(1) x + 2y + 3z = 16(2) 4x + 2y + 8z = 38(3) 1,5x + 2y + 0,5 z =13

10(1) 4x + 6y - z = 11(2) x - y + 2z = 3(3) 15x - 10y + 15z = 4011(1) 3x - y + z =33(2) x : y = 2 : 1(3) y : z = 5 : 812(1) x - y - z = 2(2) 4,5x + y - 30z = 2(3) 7x - 3y -11z = 38

16(1) 3x + 2y - 4z = -2(2) 4x - 5y + 3z = 9(3) 8x + 7y - 9z = 1317(1) 2x - 3y + 4z = 8(2) 3x + 4y -5z = -4(3) 4x - 6y + 3z = 118

1920(1) 2x + 3y - 4z = 16(2) 4x + 6y -8z = 20(3) 2x + y + z = 921(1) 2x + 2y + 2z = 12(2) x + y + z = 6(3) x - y + z = 2