How would I do this math 11 problem!!!

Solve this system of equations by graphing. Express answers to the nearest whole units. Verify your solutions.

x^2-4x-3y=5
x=2

Help please how would I graph this and how would I write the answer?

Can't graph in a text editor so I'd solve it this way:
substitute 2 for x in the first equation.
2^2 - 4(2) - 3y = 5
4 - 8 - 3y = 5
-4 - 3y = 5
-3y = 9
y = -3
(x, y) = (2, -3)