Question

2/x + 5/y =1 and 60/x - 20/y =13

Answer 1

Answer:

Step-by-step explanation:

2/x + 5/y = 1  

60/x - 20/y = 13

Let , 1/x = a and 1/y = b

∴ 2a + 5b = 1

  60a + 20b = 13

Multi by 4

   8a + 20b = 4

+ 60a - 20b = 13

          68a   = 17

a = 17/68

sudsti in equ

60 × 17 - 20b = 13

       68

15 - 20b = 13

           2 = 20b

           b = 1 / 20

 a = 1/x        and       b = 1/y

17/68 = 1/x               1/10 = 1/y

x = 68/17                   y = 10

∴ Value of x = 4

                  y = 10 .

Hope this answer is help full .