Question

by using substitute method find x+y=14 and x-y=4​

Answer 1

Answer:

Given x+y = 14 and x - y = 4

Solution :

- x + y = 14 ... (i)

X - y = 4... (ii)

From equation (i), we get

- x = 14 y ... (ii)

Putting this value in equation (ii), we get

- (14 - y - y = 4

14 - 2y = 4

- 10 = 2y

y = 10/2

- y = 5... (iv)

Putting this in equation (ii), we get

- x = 9

Hence, x = 9 and y = 5

Answer 2

Given:-

X+y=14 and x - y =4

Solution:-

x+y=14 ...

x-y=4.. (i)

From equation (i), we get

x=14- y... (i)

Putting this value in equation (i), we get

(14 - y)-y=4

14-2y= 4

10/2y

y= 10/2

y=5... (iv)

Putting this in equation (ii), we get

x=9,

Hence, x=9 and y = 5.