28.1k views
0 votes
4x + 6y - z=-18
3x +2y - 4z = -24
- 5x + 3y + 2z = 15
find x y and z

User SquareBox
by
5.6k points

1 Answer

6 votes

Answer:

x = -2, y = -1, z = 4

Explanation:

4x + 6y - z=-18

z = 18 + 4 x + 6 y

3x +2y - 4z = -24

z = 6 + (3x)/ 4 + y /2

- 5x + 3y + 2z = 15

z = 15/2 + (5x)/2 - (3y)/2

18 + 4 x + 6 y = 6 + (3x)/ 4 + y /2 = 15/2 + (5x)/2 - (3y)/2

x = -22y/13 - 48/13

4(-22y/13 - 48/13) + 6y - (15/2 + (5(-22y/13 - 48/13))/2 - (3y)/2) = -18

Compute the output value of the variables x and y with respect to the input values of x, y, and z coefficients.

User Michael Nesterenko
by
5.4k points