Question 465165
  <pre><font face = "Tohoma" size = 4 color = "indigo"><b> 
Hi,
 x+3y=15 
4x+2y=25 
*[tex \LARGE\ \ a_1x +b_1y = c_1 ]
*[tex \LARGE\ \ a_2x +b_2y = c_2 ]
*[tex \LARGE\ \ b_2 \ = 2 ]
*[tex \LARGE\ \ c_2 \ = 25 ]