SOLUTION: Which ordered pair is a solution of the following linear system? 4x+3y=5 -2x+5y=17 A) (2,-1) B) (4,5) C) (-1,3) D) (-4,7)

Algebra ->  Linear-equations -> SOLUTION: Which ordered pair is a solution of the following linear system? 4x+3y=5 -2x+5y=17 A) (2,-1) B) (4,5) C) (-1,3) D) (-4,7)      Log On


   

Question 416411: Which ordered pair is a solution of the following linear system?
4x+3y=5
-2x+5y=17
A) (2,-1)
B) (4,5)
C) (-1,3)
D) (-4,7)
Found 2 solutions by praseenakos@yahoo.com, ewatrrr:
Answer by praseenakos@yahoo.com(507) About Me  (Show Source):
You can put this solution on YOUR website!
Answer is (C) (-1,3)
Beacuse, when you plug in these values, x = -1 and y = 3 in the given equations it satisfies both the equations. where as other ordered pairs are not true for both equations.

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi

 4x+3y=5   green line

-2x+5y=17  blue line



 4x+ 3y=5

-4x+10y=34

   13y = 39

     y = 3  and x = (5-9)/4 = -1   | Using the 1st Eq

  Solution is ordered pair Pt(-1,3)