ordered pair

Question

Determine if the given ordered pair is a solution to the system

 

(-5,4)

x+y=-1

x-y=-9

Answer 1

For the ordered pair to solve the system, it must satisfy both equations. You can see if this works by just plugging the pair in for X and Y : 

 

-5 + 4 = -1 √  yes, it solves the first equation

-5 - 4  = -9 √  and yes it solves the other. 

 

So it is a solution for the system of these two equations.