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29 November, 16:20

X + 3y = 12

x = - 6y

it is system of equations

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Answers (1)
  1. 29 November, 17:53
    0
    Step-by-step explanation:

    x+3y=12- - (1)

    x=-6y- - (2)

    put (2) in (1)

    -6y+3y=12

    -3y=12

    divide both sides by - 3

    y = (12/-3)

    y=-4

    put y=-4 in (1)

    x+3 (-4) = 12

    x-12=12

    x=12+12

    x=24
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