Answer:
x=0, y=1, z=2
Step-by-step explanation:
x+y-z=-1
x+y+z=3
+_______
2x + 2y = 3 -1
2(x + y) = 2
x + y = 1
x + y + z = 3
1 + z = 3
z = 2
3x -2y -2 = -4
3x - 2y = -2
if x + y = 1, 2x + 2y equals = 2
3x - 2y = -2
2x + 2y= 2
+________
5x = 0
x = 0
x + y + z = 3
0 + y + 2 = 3
y = 1
Hope this helps ^-^
