What is the solution to the system?

Question

x+y+z=-8
x-y-z=6
2x-3y+2z=-1

Answer 1

add the first two: ---> 2x = -2
x = -1

Twice the second plus the third ---> 4x -5y = 11
sub in x=-1
-4 - 5y = 11
-5y = 15
y =-3

sub into first
-1 -3 + z = -8
z = -4

x=-1
y=-3
z=-4