Question

Pls solve this question
By reducing them to a pair of linear equations.

Best answer will get the brainliest and 20 points

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Answer:

Let 1/x + y = m

1/x - y = n

eq. 1:

=> 5m - 7n = -1

=> 7n = 5m + 1 ..(1)

eq. 2:

=> 15m + 7n = 10

Put (1):

=> 15m + 5m + 1 = 10

=> 20m = 9

=> m = 9/20

7n = 5m + 1 = 9/4 + 1

=> n = 13/28

1/x + y = m = 9/20

=> 9x + 9y = 20

=> x = 20 - 9y/9

1/x - y = n = 13/28

=> 13x - 13y = 28

=> 13(20 - 9y)/9 - 13y = 28

=> y = 4/117

x = 20 - 9(4/117)/9

=> x = 256/117

____________