Question

solve 2x + y = -4.
and x+y = -1.​

Answer 1

by elemination method

2x+y=-4

x+y=-1

(-)(-)(+)

x=-3

substitute x=-3 in eq

2(-3)+y=-4

-6+y=-4

y=-4+6

y=2

there fore x=-3 and y= 2

this is the correct answer hope this is helpful and please mark me as brainlist

Answer 2

let

2x+y= -4 be equation 1

x+y= -1 be equation 2

Now

subtracting equation 2 from 1

2x+y= -4

-

x+y= -1

- - +

____________

x. = -3

placing x = -3 in equ 2

x + y = -1

-3 + y = -1

y = -1 +3

y = 2