Answer:
-5
Step-by-step explanation:
The leading coefficient means the thing you're multiplying your highest power by. Here, your highest power of x is x^2, and that term's coeff. is -5, so the leading coefficient is -5.
y = -3x - 5
3x - y = 5
+3x +3x
-1y = 3x + 5
---- ----- -----
-1 -1 -1
x = 42, y = 36.37
