How do you solve the following linear system: 2x-y=-1, x+1/2y=-1/2 ?

1 Answer
Nov 17, 2015

Y=0
X=-1/2

Explanation:

From the 2nd equation: x=-1/2y -1/2
We substitute it in the 1st equation:
2(-1/2y-1/2)-y=-1
-y -1 -y =-1
-2y=0
Y=0 and so
X=-1/2(0)-1/2
X=-1/2