Question

x+y+1=0, 2x+y+1=0 solve by elimination method, ​

Answer 1

Step-by-step explanation:

x+y+1=0........(1)

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

Eqn (1) - (2)

x + y +1 =0

2x+y + 1=0

-. -. -

________

-x=0

x=0(Put in 1)

0+y+1=0

y=(-1)

hope it helps you

Answer 2

Step-by-step explanation:

x+y+1=0,

2x+y+1=0

By deletion method

2x+2y=-2

2x+y=-1

y=-1

2x+y=-1

2x-1=1

x=1