Answer :
x + y = 1
3x – y = 3
---------------add
4x = 4
x = 1
x + y = 1
1 + y = 1
y = 0
answer D.
(1, 0)
3x – y = 3
---------------add
4x = 4
x = 1
x + y = 1
1 + y = 1
y = 0
answer D.
(1, 0)