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27 July, 19:09

Hallie used a birthday check her mother gave her to start a savings account. She plans to save $25 per month as well. After 9 months, hallow has $300. Write and solve a linear equation to find the original check amount from hallies mother.

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  1. 27 July, 19:10
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    [x + (9 - 1) 25] = 300

    $100

    Step-by-step explanation:

    Hallie's mother gave her a birthday check of $x to start a savings account.

    She also plans to save $25 per month as well.

    So, after 9 months Hallie has in her account $[x + (9 - 1) 25]

    Therefore, from the given condition we can write that

    [x + (9 - 1) 25] = 300 ... (1) (Answer)

    ⇒ x + 200 = 300

    ⇒ x = $100

    So, the original check amount from Hallie's mother was $100. (Answer)
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