Solve. −3x+3y=−15 x−y=5 A. (5, 0) B. (0, −5) C. (1, 4) D. infinitely many solutions

Question

Solve.
−3x+3y=−15
x−y=5

A. (5, 0)
B. (0, −5)
C. (1, 4)
D. infinitely many solutions

0

Answers ( No )

    0
    2021-09-10T06:00:41+00:00

    Using elimination method:

    ( x – y = 5 ) * 3
    3x – 3y = 15
    -3x + 3y = -15
    ———————
    0x + 0y = 0

    Everything cancels

    Answer: D infinitely many solutions

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