Find the value of Q in the following system so that the solution to the system

is { (x, y) : x - 3y = 4} x - 3y=4

2x + Qy=8

Q = - 6

Step-by-step explanation:

If the solution of the system of equations is { (x, y) : x - y = 4} - infinitely many solutions, then this system is consistent and dependent.

x - 3y = 4 multiply both sides by 2

2x - 6y = 8

Therefore Q = - 6