how you due

y=x-1,y=2x-3

Set the y's equal and we have

x - 1  = 2x - 3      subttract x from both sides, add 3 to both sides

2  = x        to find y, sub this into either equation for x

y = 2 - 1   = 1

So...the solution is  {x, y}  = { 2, 1}