# Find the value of Q in the following system so that the solution to the system is {(x,y): x-3y=4} ?

Mar 14, 2018

$Q = 2$

#### Explanation:

just multiply the entire first function by 2

therefore,
$\left(x - 3 y = 4\right) \cdot 2$
=

therefore,
$= 2 x - 6 y = 8$
=

this is the same as the second function and in it, the coefficient of x is 2, therefore $Q = 2$