Question

x+y = 0 ; 2x-y = q



please solve this example​

Answer 1

Answer:

Step-by-step explanation:

x+y =0

2x -y = q

by using cramer's formula

              x               y            1

     1                 0            1              0

    -1               q            2               -1

=>   x / (q)  =   y / (-q)    =  1 / (-1)

=>on equating we get x= -q and y = q