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3 January, 21:36

Solve the system of equations.

3x+5y=9

3x+2y=3

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Answers (1)
  1. 3 January, 21:53
    0
    Eliminate

    multiply 2nd equtaon by - 1 and add to first

    3x+5y=9

    -3x-2y=-3 +

    0x+3y=6

    3y=6

    divide by 3

    y=2

    sub back

    3x+2y=3

    3x+2 (2) = 3

    3x+4=3

    minus 4 both sides

    3x=-1

    divide by 3

    x=-1/3

    (x, y)

    (-1/3,2)
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