17) 7(r+ 9) = 63 18) -8r- 2 = 62 19) -3+ 6n = 39 20) 0 = v- 7 6 21) (5k- 4)(5k+ 1) 22) (5a+ 6)(5a+ 8) 23) (4x+

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17) 7(r+ 9) = 63
18) -8r- 2 = 62
19) -3+ 6n = 39
20) 0 = v- 7 6
21) (5k- 4)(5k+ 1)
22) (5a+ 6)(5a+ 8)
23) (4x+ 1)(7x+ 2)
24) (3r- 6)(6r- 4)
25) (b- 2)(6b+ 6)
26) (m+ 3)(8m- 6)
27) (4x- 2)(x- 3)
28) (3m+ 2)(4m+ 4)
29) (5x- 1)(7x- 7)
30) (4n+ 2)(n- 7)
31) x+ 52 = 3
32) -4+ 6n = 116
33) -93 = 10b- 3
plz help

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Minh Khuê 2 days 2021-07-22T11:02:37+00:00 1 Answers 0 views 0

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    2021-07-22T11:04:13+00:00

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