Question 650180
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
y1=8x+4(7+x) 
y2=3(x-3)+10 and 
y1=y2
 8x + 28 + 4x = 3x-9 + 10
      12x + 28 = 3x + 1
      9x = -27
       x = -3
and...
 {{{8*-3 + 4*4 = 3*-6 + 10 = -8}}}