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, <em>x = -9</em>
Then, substitute the value of x in the first equation. y = -9 - 4 <em> y = -13</em>
