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24 May, 18:38

4-2 (7+8x) = 12-6 (2x-7) + 4x

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  1. 24 May, 20:41
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    4 - 2 (7 + 8x) = 12 - 6 (2x - 7) + 4x

    4 - 2 (7 + 8x) = 12 - 6 (2x - 7) + 4x

    4 + (-2) (7) + (-2) (8x) = 12 + (-6) (2x) + (-6) (-7) + 4x (Distribute)

    4 + - 14 + - 16x = 12 + - 12x + 42 + 4x

    ( - 16x) + (4 + - 14) = ( - 12x + 4x) + (12+42) (Combine Like Terms)

    - 16x + - 10 = - 8x + 54

    - 16x - 10 = - 8x + 54

    Step 2: Add 8x to both sides.

    - 16x - 10 + 8x = - 8x + 54 + 8x

    - 8x - 10 = 54

    Step 3: Add 10 to both sides.

    - 8x - 10 + 10 = 54+10

    - 8x = 64

    Step 4: Divide both sides by - 8.

    - 8x - 8 = 64 - 8

    x = - 8
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