Question

2x/a +y/b=2,, x/a-y/b=4...solve this eq. by cross multiplication method ..I will mark as brainalist. ..

Answer 1

2x/a + y/b = 2   -------- (1)

x/a - y/b = 4   -------- (2) 

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

2x/a + y/b = 2

2x/a - 2y/b = 8

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

          3y/b = -6

         3y = -6b

           y = -2b   -------- (3)


Substitute (3)  in (2), we get

x/a - y/b = 4

x/a + 2b/b = 4

x/a + 2 = 4

x/a = 2

x = 2a.


Hope it helps!

Answer 2

Hi,

Please see the attached file!


Thanks