Answer:
x = -16, y = -10, z = 7
Step-by-step explanation:
z = 7
y+2z = 4
Substitute z=7
y +2(7) = 4
y +14=4
Subtract 14
y +14-14 = 4-14
y = -10
x-y+5z = 29
Substitute z=7 and y = -10
x - (-10) + 5(7) = 29
x+10 +35 = 29
x +45 = 29
Subtract 45
x = 29-45
x =-16
