Question 2529
 
    2x + 5y = -1  ..... (1)
    x  + 2y = 0   ..... (2)
(2) * 2, we get            (To make one term in both the equations 
    2x + 4y = 0   .....(3)  equal.)
(1) - (3), we get
    y = -1  .........(4)
Substituting the value of y in Eq.(1), we get
    2x + (-5) = -1
  So 2x = 5 - 1 = 4
  So x = 4/2 
=    x = 2.

So x=2;  y=-1;   Answer.