SOLUTION: I have to solve the following system by addition: 5x - 3y = 13 4x - 3y = 11 I have tried using the example from our text and I come out with x=2, y= -1 but when Y check these #'

Algebra ->  Algebra  -> Coordinate Systems and Linear Equations -> SOLUTION: I have to solve the following system by addition: 5x - 3y = 13 4x - 3y = 11 I have tried using the example from our text and I come out with x=2, y= -1 but when Y check these #'      Log On

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Question 53307: I have to solve the following system by addition:
5x - 3y = 13
4x - 3y = 11
I have tried using the example from our text and I come out with x=2, y= -1 but when Y check these #'s into the equations they do not work. Please help.
Answer by funmath(2873) About Me  (Show Source):
You can put this solution on YOUR website!
You're right you must be checking it wrong:
5(2)-3(-1)=13
10+3=13
13=13
The first equation checks, now check the second equation:
4(2)-3(-1)=11
8+3=11
11=11
The second equation checks.
Congratulations, you were right!!!!