Question

Solution for ( x + y ) + 4 ( x-y ) = 3 ( x + y ) ( x-y ), 3 ( x-y ) - 6 ( x + y ) = 9 ( x + y ) ( x-y )

Answer 1

[x+y]+4x-4y=3[x*x-y*y]*3[x-y-6[x+y]=9[x*x-y*y]