Question

x+2y +1 = 0
2х - Зу - 12 = 0​

Answer 1

Answer:

x=3 and y= - 2

Step-by-step explanation:

Here,

x+2y +1 = 0 - - - - - (1)

2х - Зу - 12 = 0 - - - (2)

Multiplying eqn (1) by 2 then subtracting(1) from (2)

2x+4y+ 2= 0

2x-3y-12 = 0

7y+14 = 0

or, 7y = - 14

i.e. y = -14/7 = -2

Putting the value of x in eqn(1)

x +2.(-2)+1 = 0

or, x - 4 +1 = 0

or, x - 3 = 0

i.e. x = 3

Hence,

x= 3 and y = -2