Question

What is y=2x-1 and y-2x=3. The x and y in both equations have to be the same. Thanks.

Answer 1

2x-1 = 2x+3
2x = 2x+4
0=4
there is no solution

The reason for this is the equations have the same slope and they have different y-intercepts. this means that they are parallel and will never touch.