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12 December, 23:17

Which of the following expressions is not equivalent to the others? explain.

A. 6 (x-1) + 5 B. 6x-1 C. 6 (1-x) + 5 D. 5+6x-6

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  1. 13 December, 02:24
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    The answer is C. Explanation is below:

    All of the equations equal 6x-1 when they are simplified except for C. the work is below:

    a. 6 (x-1) + 5 → Distribute the 6 times x and 6 times - 1

    6x - 6 + 5 → Now combine like terms

    6x - 1

    b. 6x - 1 → This is already simplified.

    c. 6 (1-x) + 5 → Distribute the 6 times 1 and 6 times - x.

    6 - 6x + 5 → Combine like terms

    -6x + 11

    d. 5 + 6x - 6 → Combine like terms

    6x - 1
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