Question 375433
  <pre><font size = 3 color = "indigo"><b>
Hi,
solve the system y=2x+1 and y-2x=5 by substitution
y=2x+1 
y-2x=5  Substituting for y
(2x + 1)-2x = 5
1 &#8800; 5  there is NO solution for this system
Note: the lines are parallel, both with slopes = 2
y = 2x+1  and y = 2x + 5
{{{graph( 300, 300,-6,6,-6,6,2x+1,2x+5) }}}