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Isabella A.

asked • 06/08/14

Helppppp Please ( solving system of equations)

3x+4y=9
4x-37=-13

2 Answers By Expert Tutors

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Philip P. answered • 06/08/14

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Isabella A.

wow thank you so much!
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06/08/14

Isabella A.

see the answers could only be 
 
A. (-1,-3)
B. no solution 
C. infinitely many solutions
D. (-1,3)
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06/08/14

Philip P.

Oops, I plugged in x=3 instead of x=6, so the y value is -9/4 vice 0. 
 
Since (6,-9/4) is not one of the options, did you write the equations down correctly?
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06/08/14

Philip P.

You did write the equations down incorrectly - the second equation should be 4x-3y=-13 vice 4x-37=-13. I've corrected the answer above.
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06/08/14

Stephen W.

tutor
LOL! You are more patient than I am. I noticed that, and decided to step away from this problem. Lots of time wasted.
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06/08/14

Philip P.

You were probably the wiser one of the two of us.  That second equation - without a y term - was suspect.  But once I made the mistake of stepping in, I needed to try to figure it out.  ;-)
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06/08/14

Stephen W.

tutor
Bravo! I admire your dedication.
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06/08/14

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