Question

Solve for x&y
(10/x+y)+(2/x-y)=4
(15/x+y)-(5x-y)=-2​

Answer 1

Step-by-step explanation:

Let 1/x+y=a

Let 1/x-y=b

10a+2b=4

15a-5b=-2

5(10a+2b)=4×5

2(15a-5b)=-2×2

[50a+10b=20]

+[30a-10b=-4]

80a=16

a=1/5

x+y=5

and

(10/5)+2b=4

2b=2

b=1

x-y=1

x+y=5

x=1+y

2y+1=5

y=2

x+y=5

x=3