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4 September, 03:56

Substitution:

y=6x-11

-2x-3y=-7

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Answers (1)
  1. 4 September, 04:03
    0
    Y=6x-11

    subsitute 6x-11 for y in other equation

    -2x-3 (6x-11) = - 7

    distribute

    -2x-18x+33=-7

    -20x+33=-7

    minus 33 both sides

    -20x=-40

    divide both sides by - 20

    x=2

    sub back

    y=6x-11

    y=6 (2) - 11

    y=12-11

    y=1

    (x, y)

    (2,1)
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