Answer:
Y=4, Z= -5
Steps:
-y +z = -9 -------(1)
y -5z = 29 ------(2)
from (1):
z = y-9 ------(3)
Substitute (3) in (2)
y - 5(y - 9) = 29
y - 5y +45 = 29
-4y = 29 -45
-4y = -16
Divide both side by ( -4)
y = 4
Use the value y=4 in (1), (2) or (3).
IN (1):
-(4) +z = -9
z = -9 +4
z = -5
