Question

(ii) 2x - y = 4; x + y = -1
​

Answer 1

Answer:

y = -2 & x = 1

hope it helps you....

Answer 2

Answer:

y = - 2

x  = 1

Explanation:

x = -1 - y

then,

2x -y = 4

2 (-1 - y) -y = 4

-2 -2y -y = 4

-2 - 3y = 4

-3y = 4 + 2

-y = 6 / 3

y = - 2

x = -1 -y

= -1 - (-2)

= -1 + 2

= 1

Hope this helps :)