Question

Solve the Following Pair of equations by cross multiplication method
(X+2)(y-1) ; (x-1)(y+1)=xy​

Answer 1

2−6

x

=

−6+4

y

=

−2+1

1

−4

x

=

−2

y

=

−1

1

On equating first and third expression, we get

x=4

and, on equating second and third expression, we get,

y=2

Therefore, the solution is x=4 and y=2.