Question

4x+6y=3xy,8x+9y=5xy​

Answer 1

Step-by-step explanation:

Let us try to make 8x in both equations

Therefore multiply equation with 4x by 2 to make it = 8x

2 x (4x + 6y = 3xy)

8 x + 12 y = 6 xy .............. i

8x + 9y = 5xy ....................... ii

i - ii

3y = xy

3 = x

Putting the value of x in ii

24 + 9y = 5x3y

24 = 15y - 9y

24 = 6y

y = 4

x = 3

Answer 2

Answer:

We have,

4x + 6y = 3xy …(i)

8x + 9y = 5xy …(ii)

Now, dividing (i) and (ii) by xy we get:

…(iii)

Also, …(iv)

Now, multiplying (iii) by2 and then subtracting it from (iv) we get:

∴ x = 3

Now, substituting the value of x in (iii) we get:

∴ y = 4