Question

solve class 10 question​

Answer 1

Step-by-step explanation:

first question

10/x+y+4/y-x=-2

or,10/x+y-4/x+y=-2

or,10-4/x+y=-2

or,6/x+y=-2

or,6=-2(x+y)

or,6=-2x-2y

or,6=-2(x+y)

or,6/2=x+y

so,x+y=3

Answer 2

Answer:

mate take 1/x+y= p and 1/y-x= q

Step-by-step explanation:

if U take dat,

10p + 4q=-2 -(i)

15p-7q=10-(ii)

Multiply (i)x7 and (ii)x4

70p+28q=-14

60p-28q=40

add both the equations

130p=26

p=26/130=12/65

substitute in i

10×12/65 +4q=-2

after doing that, U will get q=-25/26

1/x+y=12/65

65=12x+12y

1/y-x = -25/26

26=25x-25y

12x+12y =65

25x-25y=26

then do by any method U will get the ans

forgive me for mot completing the ANS

However if U find any mistake lemme knw