Solve the system

-2y+5z=-3

y=-5x-4z-5

x=4z+4

-2y + 5z = - 3

y = - 5x - 4z - 5

x = 4z + 4

-2 (-5 (4z + 4) - 4z - 5) + 5z = - 3

-2 (-20z - 20 - 4z - 5) + 5z = - 3

-2 (-20z - 4z - 20 - 5) + 5z = - 3

-2 (-24z - 25) = - 3

48z + 50 = - 3

- 50 - 50

48z = - 53

48 48

z = - 1⁵/₄₈

x = 4 (-1⁵/₄₈) + 4

x = - 4⁵/₁₂ + 4

x = ⁵/₁₂

y = - 5 (⁵/₁₂) - 4 (-1⁵/₄₈) - 5

y = - 2¹/₂ + 4⁵/₁₂ - 5

y = 1¹¹/₁₂ - 5

y = - 3¹/₂

(x, y, z) = (⁵/₁₂, - 3¹/₂, - 1⁵/₄₈)