Answer:
X = 8
Y = 32
Z = 16
Step-by-step explanation:
X + Y + Z = 56
Y = 2Z
X = Z – 8
Substitute the values from the second and third equation into the first equation:
Z – 8 + 2Z + Z = 56
Simplify
-8 + 4Z = 56
4Z = 64
Z = 16
So if Y = 2Z, Y = 2(16) = 32
And if X = Z – 8, X = 16-8 = 8
