20 10 40 30. 15 40 70 25 20 30 100 40 50​

Question

20 10
40
30.
15
40
70
25
20
30
100
40
50​

in progress 0
Delwyn 3 years 2021-07-31T04:33:46+00:00 1 Answers 11 views 0

Answers ( )

  1. Nick
    0
    2021-07-31T04:35:33+00:00
    Reply

    60? I don’t know what this mean

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