Question

solve by cross multiplication method , ax+by=c ,bx+ay=1+c

Answer 1

x= b²-a²/(-b-c)-(a-c)
  =b²-a²/ -b-c+c-a
  =b²-a²/-b-a
  =a²-b²/a+b
  =(a-b)(a+b)/a+b
  =a-b

y=a²-b²/(-b-c)-(a-c)
  =a²-b²/-b-a
  =b²-a²/a+b
  = (b-a)(b+a)/a+b
  =b-a
 therefore x=a-b and y=b-a