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5 November, 06:22

Callie solved this one-variable equation. When she was done, she tried to verify her answer, but found that it was wrong. Can you find her mistake? 1 2 (4k + 8) = 10 1. 2k + 16 = 10 2. 2k = - 6 3. k = - 3

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  1. 5 November, 06:38
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    2 (4k+8) = 10

    8k+16=10 (she said 2k instead of 8k)

    To continue solving, subtract 16 from both sides. That would give you 8k = - 6. Then divide both sides by 8, and get - 6/8 which equals - 3/4.
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