2x-y=-2, x+2y=-1 solve

Question

2x-y=-2, x+2y=-1 solve

Answer 1

First step is to solve for y in both equations.

 

2x-y=-2      

 

-y=-2x-2

 

y=2x+2

 

x+2y=-1

 

2y=-x-1

 

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

 

Now you can graph these functions using slope and y-intercept method.  Once you do that, find the point where the two functions intersect.  The point of intersection is your solution.