Question

please help with these questions of the lesson rational numbers and please don't waste others chance to answer by posting useless answers ​

Answer 1

x =3 and y = 2

Step-by-step explanation:

let

1/x+y = u and 1/x-y = v

then

5u - 2v = -1 and 15u + 7v = 10

solving above eq.

u = 1/5 and v = 1.

which gives

1/x+y = 1/5 and 1/x-y = 1 ==> x+y =5 , x-y = 1

solving them gives x = 3 and y = 2

Answer 2

Answer:

hope it helps you friends