Question

Solve :
x+ y = 7xy
2x - 3y = - xy

Answer 1

x + y = 7xy                           ...(1)
2x - 3 = - xy                          ...(2)
Multiplying equation no. (1) by 3.
3x + 3y = 21xy                     ....(3)
Adding equation (3) and (2)
     3x + 3y = 21xy
+   2x - 3y  = - xy  
      5x = 20xy
        y = `1/4`
From (1)
x + `1/4 = 7 x (1/4)`

`1/4 = 3/4x`

x = `1/3`