Question

. 3x + 2y + 25 = 0, 2x + y + 10 = 0​

Answer 1

Answer:

$3x + 2y + 25 = 0$

$3x + 2y = - 25.........(1)$

$again \: 2x + y + 10 = 0$

$2x + y = - 10.....(2)$

Now, by using elimination method we get,

$eqation \: (1) = 3x + 2y = - 25$

And,

$equation(2) \times 2 = 4x + 2y = - 10$

Now (1)-(2)

$= 3x + 2y = - 25$

$4x + 2y = - 10$

$= - x = 15$

Therefore,

$x = - 15$

Now putting the value of x in equation (1).......

$3 \times ( - 15) + 2y = - 25$

$- 45 + 2y = - 25$

$2y = - 25 + 45$

$2y = 20$

$y = 10$

Therefore the value of

$x = - 15 \: \: and \: y = 10$

MAY THIS HELP YOU.