SOLUTION: solve the systems of equations graphically, and determine if there are ordered pair, and determine if the system is inconsistent or dependent for the following problem: 5x+y=-9

Algebra ->  Matrices-and-determiminant -> SOLUTION: solve the systems of equations graphically, and determine if there are ordered pair, and determine if the system is inconsistent or dependent for the following problem: 5x+y=-9       Log On


   

Question 212994This question is from textbook survey of mathematics with applications
: solve the systems of equations graphically, and determine if there are ordered pair, and determine if the system is inconsistent or dependent for the following problem:
5x+y=-9
3x+2y=3 This question is from textbook survey of mathematics with applications

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
5x+y=-9 x2 --> 10x+2y = -18
3x+2y=3
10x+2y = -18
-------------Subtract
-7x = 21
x = -3
---------
Sub into 2nd eqn
3(-3) + 2y = 3
-9 + 2y = 3
2y = 12
y = 6
-------
You'll have to do the graphs.
------------
Ignore that other "tutor", he's a child that appears with an inane comment now and then.