Question

solve the pair of linear eqations :8x-9y=6xy ,10x +6y=19xy

Answer 1

1) 8x - 9y = 6xy

→ 8 / y - 9 / x = 6 .... [divide by xy]

→16 / y - 18 / x = 12 .... [multiplying by 2] (I) ....



2) 10x + 6y = 19xy

→10 / y + 6 / x = 19 [dividing by xy]

→30 / y + 18 / x = 57 .. [multiplying by 3] (II) ...

on adding I and II we get ...

y = 2 / 3 ...

and on solving we get ...

x = 3 / 2 ....

• y = 2 / 3 ... and • x = 3 / 2

hope this will help you...

Answer 2

Answer:

Step-by-step explanation:

8x-9y=6xy-----(1)

8x=6x+9y

x=6xy+9y/8-----(2)

As per given data.

10x+6y=19xy-----(3)

Substituting value of x in equation (3)

(30xy+45y+24y)/4=19xy

30xy+69y=76xy

y=3/2

Substituting value of y in equation (1)

12-9y=9y

y=2/3.