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5 January, 08:41

X+2y=-9 5x+6y=-13 what is the answer?

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Answers (2)
  1. 5 January, 10:50
    0
    X + 2y = - 9 ... x = - 2y - 9

    5x + 6y = - 13

    5 (-2y - 9) + 6y = - 13

    -10y - 45 + 6y = - 13

    -10y + 6y = - 13 + 45

    -4y = 32

    y = - 32/4

    y = - 8

    x + 2y = - 9

    x + 2 (-8) = - 9

    x - 16 = - 9

    x = - 9 + 16

    x = 7

    solution is (7,-8)
  2. 5 January, 11:28
    0
    The answer i got was 7,-8
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