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9 December, 22:59

what is 16x+9=9y-2x

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Answers (2)
  1. 9 December, 23:00
    0
    16x + 9 = 9y - 2x

    -16x - 16x

    9 = 9y - 18x

    -9y - 9y

    -9y + 9 = - 18x

    - 9 - 9

    - 9y = - 18x - 9 (divide each side by - 9)

    y = 2x + 1
  2. 9 December, 23:27
    0
    Solve for x.

    16x+9=9y-2x

    Add 2x to both sides.

    16x+9+2x=-2x+9y+2x

    18x+9=9y

    Add - 9 to both sides.

    18x+9+-9=9y+-9

    18x=9y-9

    Divide both sides by 18.

    18x/18 = 9y-9/18

    x = 1/2y + - 1/2

    solve for y.

    16x+9=9y-2x

    Flip the equation.

    -2x+9y=16x+9

    Add 2x to both sides.

    -2x+9y+2x=16x+9+2x

    9y=18x+9

    Divide both sides by 9.

    9y/9=18x+9/9

    y=2x+1
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