Question

x+2y=-3 and 2x-6y=14 by elimination method​

Answer 1

Step-by-step explanation:

x+2y = -3 (×3)

• =3 X + 6 y =- 9...(1)
• 2 x -6 y = 14....(2)

comparing the two equations

3 X + 6 y =- 9

2 x -6 y = 14

3x+2x =-9+14

5x=5

x=1

putting the value of x in any of the equation

let us put the value of x in the first equation

1+2y=-3

2y=-4

y=-2

thus

• x=1
• y= -2

Answer 2

Answer:

Step-by-step explanation:

x  +  2y  =  -3

(2x-  6y  =  14) Divide by 2

Then,  x + 3y = 7

          x + 2y = -3

       (-)  (-)         (+)

          0 + y = 10

                 y = 10

x + 3y = 7

x + 3(10) = 7

x + 30 = 7

x = 7- 30

x = -28