Question 623693
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,  
Solve using the SUBSTITUTION method: 
3x + y = 26    or y = -3x+26  (Green)   |Solving 1st EQ for y, so as to have something to 'substitute' for y in the 2nd EQ
-6x + y = -37 
-6x + (-3x+26) = -37    ||Substituting (-3x+26) for y gives the solution for x
     -9x = -63
       x = 7  and {{{y = -3*7 + 26 = 5}}}
Ordered pair (7,5) is the solution for this system of EQuations
{{{drawing(300,300,   -6, 10, -6, 6,  grid(1),
circle(7, 5,0.3),
graph( 300, 300, -6, 10, -6,6,0, -3x+26,6x-37))}}}