Answer:
The value of Q is -6 for the given equations.
Step-by-step explanation:
From the given question,
X - 3y = 4 equation (1)
2X + Qy = 8 equation (2)
Multiply the entire equation (1) by 2 and equation (2) by -1
Therefore equation (1) and equation (2) becomes as follows
2X - 6y = 8 equation (1)
-2X - Qy = -8 equation (2)
Add equation 1 and 2 to find Q
-6Y - Qy = 0
-Qy = 6y
Cancelling both the in L.H.S and R.H.S, we get
Q = -6
Thus we solved both the equations and found Q = -6.
