Question

x+y=6 and 3x-y=4thenx-y

Answer 1

Hii frnd...

Solving the equations simultaneously...
x+y=6
3x-y=4
4x=10
x=5/2

putting this value of x in 1st equ.
5/2+y=6
y=7/2

Putting these values in eq x-y
5/2-7/2=-1.

Hope it helped u!!!

Answer 2

  x + y = 6 
3x  - y = 4 
---------------
4x  + 0 = 10 
---------------

⇒4x =10 

⇒x =10/4 

⇒x = 5/2 

                  Putting the value of x

⇒ x  + y = 6 


⇒5/2  + y = 6 


⇒y = 6 - 5/2 

⇒y = (12 - 5)/2 

⇒y = 7/2 

==============================


x - y 


5/2 - 7/2 

(5 -7)/2

-2/2

-1 

==================

x  - y= -1 



i hope this will help you


-by ABHAY