Question

32/x-y + 36/x+y=7 40/x-y+ 48/x+y =9​

Answer 1

Answer:

X =10 y=2

Step-by-step explanation:

Hope this helps you

Answer 2

Let 1/(x + y) = a and 1/(x - y) = b  therefore,  

38a + 21b= 9 -------- (2)   

Solving equations 1 and 2, we get   

A = 1/19    and b = 1/3   

But 1/(x + y) = a and 1/(x - y) = b   

⇒ (x + y) = 1/a = 19  

 ⇒ x + y=19 -------- (3)  

 ⇒ x - y = 1/b =3  

 ⇒ x - y = 3 ----------(4)   

Solving equations 3 and 4, we get x = 11 and  y = 8.