2. Keegan and Margaret solved the system
4x - y = 5 and 4x + y = 3. Keegan says
there is no solution and Margaret says
the solution is (1, -1). Who is correct?
Explain.
Keegan:
4x-y = 5
-4x+y = 3
8
0
No solution
Margaret:
4x-y = 5
-4x-y=-3
-2y=2 y=-1
4x+1=5
4x = 4
x=1 (1,-1)
