Question

16. solve: 7/(x+1) + 1/(y-1)=2 ,
14/(x+1) - 4/(y-1) =2

Answer 1

Step-by-step explanation:

Let a= 1/x+1 b = 1/y-1

7a +b=2 - 1

14a-4b=2 - 2

Using elimination method

(7a +b=2) multiply by 4

(14a-4b=2) multiply by 1

28a +4b=8

+14a - 4b=2

=42a +0b=10

a=10/42

In eqn- 1

7a+b=2

7(10/42) + b=2

10/6 +b=2

b= 2-10/6

=12-10/6

b =2/6

a=10/42

b=2/6

Hopefully this will help you.....