Select all the expressions that are equivalent to – 2/5 (15-20d + 5c). -6 + 8d – 2c -2c + 8d – 6 -2(3 – 4d + c) -30

Question

Select all the expressions that are equivalent to – 2/5 (15-20d + 5c).
-6 + 8d – 2c
-2c + 8d – 6
-2(3 – 4d + c)
-30 + 40d – 100
O 6-8d + 20

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Thu Nguyệt 2 months 2021-07-26T10:51:39+00:00 1 Answers 0 views 0

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    2021-07-26T10:52:52+00:00

    One of them is -6+8d-2c

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