(x + 2y – 2z) – (2x – 5y – 6z) is equivalent to…?

Question

(x + 2y – 2z) – (2x – 5y – 6z) is equivalent to…?

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Ben Gia 18 mins 2021-07-22T22:24:43+00:00 1 Answers 0 views 0

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    2021-07-22T22:26:19+00:00

    Answer: -x + 7y + 4z

    Step-by-step explanation:

    x + 2y – 2z – (2x – 5y – 6z)

    x + 2y – 2z – 2x + 5y + 6z

    -x + 7y + 4z

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