9. Какие равенства верны? 1. 5а + 5b = 5(a + b) 2.-3x - 12y = -3(x - 4y) 3. - 6m + 18n = (6m - 3n) 4. - 3р + бq = -3(р-2q) 5. 8а - 40b = 8(а - 5b) 6. – 9x - 18y = 9(x-2y) C) 2, 4, 6 D) 1, 4, 5 А) 2, 3, 6 В) 1, 3, 5​
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