What’s 9 + 10 = ???????????????????????????????????

Question

What’s 9 + 10 =
???????????????????????????????????

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Thanh Thu 3 years 2021-08-30T11:57:32+00:00 1 Answers 9 views 0

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  1. thucuc
    0
    2021-08-30T11:58:46+00:00
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    Answer:

    19

    Step-by-step explanation:

    21 🙂

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )