For which system of equations is (5, 3) the solution?
A.
3x – 2y = 9
3x + 2y = 14
B.
x – y = –2
4x – 3y = 11
C.
–2x – y = –13
x + 2y = –11
D.
2x – y = 7
2x + 7y = 31

Question

For which system of equations is (5, 3) the solution?
A.
3x – 2y = 9
3x + 2y = 14
B.
x – y = –2
4x – 3y = 11
C.
–2x – y = –13
x + 2y = –11
D.
2x – y = 7
2x + 7y = 31

shamil98 · Answer

Input (5,3) , x=  5, y = 3 into the equations and see which ones work.

shamil98 · Answer

I can pretty much see which one it is just by mental math, but that's about what you have to do, see which one fits.

anonymous · Answer

so it's b or c?

shamil98 · Answer

neither. don't guess..

anonymous · Answer

OHHHHHHHHHHH Its AAAA

whpalmer4 · Answer

Really?
3(5) +2(3) = 14 in your world?

shamil98 · Answer

input facepalm here.

whpalmer4 · Answer

You have to test ALL of the equations to make sure your solution works.  It is possible to have a "solution" which works in some, but not all of the equations.  There's a technical term we like to use for those solutions: "wrong" :-)