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15 April, 05:30

What is the best way to classify each equation? 22-3x+7x=4 (x+5),6 (2x-3=3 (3-5), 6x-14=2 (3x-7), 6x+3 (x-4) = 8 (x-3)

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  1. 15 April, 05:46
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    1. 22 - 3x + 7x = 4 (x + 5)

    22 - 3x + 7x = 4x + 20

    +3x + 3x + 3x

    22 + 10x = 7x + 20

    -7x - 7x

    22 + 3x = 20

    -22 - 22

    3x = - 2

    3 3

    x = - 2/3

    2. 6 (2x - 3) = 3 (3 - 5)

    12x - 18 = 3 (-2)

    12x - 18 = - 6

    +18 + 18

    12x = 12

    12 12

    x = 1

    3. 6x - 14 = 2 (3x - 7)

    6x - 14 = - 3x

    6x - 14 = 2 (-7)

    6x - 14 = - 14

    +14 + 14

    6x = 0

    6 6

    x = 0

    4. 6x + 3 (x - 4) = 8 (x - 3)

    6x + 3x - 12 = 8x - 24

    9x - 12 = 8x - 24

    -8x - 8x

    x - 12 = - 24

    +12 + 12

    x = - 12
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