The best way to answer this item is to use the Substitution method. Substitute the value of y from the first equation to the y of the second equation such that the second equation becomes,
-4x + 3(x - 4) = -3
Simplifying the equation,
-x = 9
Dividing both sides by -1 gives an answer of,
x = -9
Then, substitute the value of x in the first equation.
y = -9 - 4
y = -13
The answer to this item is letter B.
