Question 874757
 x + y + z = 13 (ADD (times -5)
<u>2x + 4y + 5z = 48</u>
  -3x - y = -17  (ADD (times -1)
 <u>  5x - y = 7</u>
     8x = 24,  x = 3 and y = 8 {{{15-7}}} z = 2 {{{13-3-8}}}  
(3, 8, 2) the solution for this System