Помогите решить (-0,5x^2y^3z^5)

Вариант 1.

{x+2y+3z = 14

{2x+y-z = 1

{3x+2y+2z = 13

Вариант 2

{2x-3y+z = 8

{5x-y-z = 10

{x+3y+4z = 3

Вариант 3

{2x-3y+z = 0

{5x+y-2z = - 1

{x-y+z = 3

Вариант 4

{2x+3y+z = 6

{3x-y-z = 1

{5x+2y+4z = 11

Вариант 5

{3x-y+2z = 13

{2x+y-z = 0

{5x+3x+7y = 28

Вариант 6

{3x-y + 2z = 10

{7x + z = 22

{-x + 3y + 2z = 2

Вариант 7

{x + 3y - z = 3

{2x - y + 4z = 5

{3x + 2y + 5z = 10

Вариант 8

{2x - y + 4z = 7

{7x + 3y - z = 3

{5x - 2y - 3z = 4

Вариант 9

{2x + 3y - 4z = 1

{3x - y + 2z = 12

{4x + 3y - 3z = 9