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21 September, 17:38

Malloy solved the equation - 5x - 16 = 8; his work is shown below. Identify the error and where it was made. - 5x - 16 = 8 Step 1: - 5x - 16 + 16 = 8 + 16 Step 2: - 5x = 24 Step 3: negative five times x over five = twenty-four over five Step 4: x = twenty-four over five

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  1. 21 September, 18:17
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    -5x - 16 = 8

    -5x - 16 + 16 = 8 + 16 (step 1 ... correct)

    -5x = 24 (step 2 ... correct)

    -5x/5 = 24/-5 (step 3 ... incorrect ... he didn't divide both sides by - 5)

    x = - 24/5
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