Which ordered pair is the solution to the system of equations? x+y=-1 x-3y=11 A. (2, −3) B. (−2, 1) C. (5, −2) D. (−6, 5)

Question

Which ordered pair is the solution to the system of equations? x+y=-1  x-3y=11    A. (2, −3)    B. (−2, 1)    C. (5, −2)    D. (−6, 5)

anonymous · Answer

@TheSmartOne

anonymous · Answer

A

anonymous · Answer

how?

anonymous · Answer

2-3=-1
-1=-1

2-3(-3)=11
2+9=11 (note that negative  times negative equals positive)
11=11

anonymous · Answer

Just substitute the values remember an ordered pair is (x,y)

anonymous · Answer

omg lol I forgot all about negative times negative is positive

anonymous · Answer

No problem!

anonymous · Answer

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