(Q2). Solve the given equation.

x+1
2
+
y-1
3
= 8
x-1
3
+
y+1
2
= 9

Given:

x+1
2
+
y-1
3
= 8
(x+1)+(y-1)
= 8
x+y+-
= 8

x + y + =

x + y = ..... (1)

and
x-1
3
+
y+1
2
= 9
(x-1)+(y+1)
= 9
x+y-+
6
= 9

x + y + =

x + y = …… (2)

equation (1) × x + y =
equation (2) × x + y =

-y = -
⇒ y =
-
-
=

Substituting y = in equation (1) we get

3x + 2() = 47

⇒ 3x = 47 –

⇒ 3x =

⇒ x =
=

∴ The solution (x, y) = (, )