Qn. The number of integral solutions for the equation x + 2y = 2xy is p, then (Qn.no. 19. c)

x-1 = 1, -1 in the solution of the problem

) ·.· x + 2y = 2xy

=> x = 2y(x - 1)

Or 2y = x/(x-1) = 1+1/(x-1)

.·. x - 1 = 1, - 1 How do we get this step. Pls. explain

Or x = 2, 0

then 2y = 2, 0 => y = 1, 0

Harshini Jayarraman

16 Years agoGrade 11