Question

Use substitution method to solve the system of equations.
X-2y+z=0
2x-3y-4z=-9
X+2y-5z=0

Answer 1

x+ 2y-5z = 0
-x +2y -z = 0

4y -6z = 0

2x -3y -4z = -9
-2x - 4y +10z = 0

6z = -9 + 7y

-3y + 9 = 0
y = -3

6z = -30
z = -5

x = -2y + 5z
x = 6 -25
x = -19

( -19, -3, -5)

Answer 2

I'm guessing you didn't come here for any math help.

Answer 3

not truee..I am about to post my question

Answer 4

I'm just teasing you

Answer 5

lol