Question

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

Answer 1

heya !!!!

your answer will be -1




hopes it helps!!!!!!!!!




thanks

Answer 2

Given 1st Equation =  x + y = 6  ---------- (1)

Given 2nd Equation = 3x - y = 4  ------------- (2)


On solving (1) & (2), we get

x + y = 6

3x - y = 4

-----------------

4x = 10

x = 10/4

x = 5/2.


Substitute x = 5/2 in (1), we get

x + y = 6

5/2 + y = 6

y = 6 - 5/2

   = 12 - 5/2

   = 7/2.


Therefore x = 5/2 and y = 7/2.

Now,

$x - y = \frac{5}{2} - \frac{7}{2}$

              $= \frac{-2}{2}$

              $= -1.$



Hope this helps!