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1 March, 22:51

2 (y-4) + 5=3 (y+2) for y

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Answers (2)
  1. 2 March, 01:22
    0
    y = - 9

    Step-by-step explanation:

    Expand:

    2y - 8 + 5 = 3y + 6

    Simplify 2y-8+5 to 2y-3:

    2y - 3 = 3y + 6

    Subtract 2y from both sides:

    -3 = 3y + 6 - 2y

    Simplify 3y + 6 - 2y to y + 6:

    -3 = y + 6

    Subtract 6 from both sides:

    -3 - 6 = y

    Simplify - 3 - 6 to - 9:

    y = - 9
  2. 2 March, 01:38
    0
    2 (y-4) + 5=3 (y+2)

    multiply the first bracket by 2

    (2) (y) = 2y

    (2) (-4) = -8

    multiply the second bracket by 3

    (3) (y) = 3y

    (3) (2) = 6

    2y-8+5=3y+6

    2y-3=3y+6

    move 3y to the other side

    sign changes from + 3y to - 3y

    2y-3y-3=3y-3y+6

    -y-3=6

    move - 3 to the other side

    -y-3+3=6+3

    -y=9

    multiply both sides by - 1 to get + y

    (-1) (-y) = 9 (-1)

    Answer:

    y=-9
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