What is the value of ma-2m+ na for m–2 and n-4?

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What is the value of ma-2m+ na for m–2 and n-4?

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Neala 5 years 2021-08-03T23:17:20+00:00 1 Answers 22 views 0

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    2021-08-03T23:18:36+00:00
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    The answer is 2a+4

    -2a -2(-2) +4a
    -2a +4 +4a
    -2a
    =2a +4

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