Question

4x-5y=20
3x+5y=15
Ko vilopan vidhi se hal kijiye

Answer 1

Answer:

4x-5y=20

4x-5y=—1xy

-1xy=20

xy=20/1

Answer 2

Let, 4x-5y=20 ...(1)

      3x+5y=15 ...(2)

By adding equations (1) and (2),

        4x-5y = 20

   +    3x+5y = 15

         7x + 0 = 35

                7x = 35

           ∴     x = 5

Now put this value of x in equation (1),

        4(5) - 5y = 20

          20 - 5y = 20

                 -5y = 20 - 20

              ∴   y = 0

Therefore, the value of x is 5 and y is 0.