Question 899625
 <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi
3x+y=5  
 x-y=7   x = {{{7+y}}}
3x+y=5  |Substitute for x
3(7+y) + y = 5
21 + 3y + y = 5
 4y = 5 - 21  |Solving for y
  4y = -16
 y = -4, And...  x = 3 {{{7 + -4}}}
Ordered Pair (3,-4) is the Solution for this System of EQs
3x+y=5  0r y = -3x + 5  Green
 x-y=7   0r y = x-7  Blue
{{{drawing(300,300,   -6, 6, -6, 6, grid(1), 

circle(3, -4,0.2),

graph( 300, 300, -6, 6, -6, 6,0, -3x+5, x-7) )}}}