Question

find the common solution 2x - y = 4 and x + y = -1​

Answer 1

Answer:

I think u didn't ask the perfect question,check whether it is elimination or substitution method

Answer 2

Answer:

x=1, y=-2

Step-by-step explanation:

2x-y=4 -----------(1)

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

(2)-> y=-x-1 -----------(3)

substitute 3 in 1

2x+x+1 =4

3x+1=4

3x =3

x=1

substitute value of x in 2

1+y=-1

y=-2