Which expression is equivalent to 3(m+ 2) − 4(2m− 9) HELP ASAP

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Which expression is equivalent to 3(m+ 2) − 4(2m− 9) HELP ASAP

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Thu Giang 1 year 2021-09-03T15:59:37+00:00 1 Answers 0 views 0

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    2021-09-03T16:01:35+00:00

    3(m + 2) – 4(2m – 9)
    = 3m + 6 – 8m + 36
    = 3m – 8m + 6 + 36 (now, we will group like terms).
    = -5m + 42.

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