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31 December, 12:21

Which expression has a value that is equivalent to 5n + 13 when n=-5? 1.2n + 2 2. 4n + 8 3. n² + 13 4. n + 8

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  1. 31 December, 12:39
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    2. 4n + 8

    Step-by-step explanation:

    5n + 13 when n=-5

    Lets plug in - 5 for 'n' in 5n+13

    5 (-5) + 13 = - 25 + 13 = - 12

    Now we check with each option and see whether we get same answer - 12

    Plug in n=-5 in each option

    1) 2n + 2 = 2 (-5) + 2 = - 10+2 = - 8

    2) 4n + 8 = 4 (-5) + 8 = - 20 + 8 = - 12

    3) n² + 13 = (-5) ^2 + 13 = 25 + 13 = 38

    4) n + 8 = - 5 + 8 = 3

    We got same answer - 12 for option 2
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