A) 9a = ...... = 12a b) ...... –5m = –2m c) ...... –3b = 0 N2. 2x – x + 4x – 3x N3 a) –(x – 5y) b) x + (2y – 7) – z N4 c) 4a ・ 16 d) 20c...
A) 9a = ...... = 12a b) ...... –5m = –2m c) ...... –3b = 0 N2. 2x – x + 4x – 3x
N3 a) –(x – 5y) b) x + (2y – 7) – z N4 c) 4a ・ 16 d) 20c : 5
N5 a) 3 (4k – 5) b) (b – 3) (–2) c) 2 (4a + 5) – 4a
N6 (a + b) – (a – b) = (c + b) – (c – b)
N7 4a 3 2a = 6a + 3 4a 3 2a = 2a + 3 4a 3 2a = 24a 4a 3 2a = –2a
Гость
Ответ(ы) на вопрос:
Гостьa) 9a +3a = 12a b) 3m – 5m = –2m c) 3b – 3b = 0 N2. 2x – x + 4x – 3x = 1x + 1x = 2x
N3 a) –(x – 5y) = -x + 5y b) x + (2y – 7) – z = x + 2y - 7 - z N4 c) 4a ・ 16 = 64a d) 20c : 5 = 4c
N5 a) 3 (4k – 5) = 12k - 15 b) (b – 3) (–2) = -2b + 6 c) 2 (4a + 5) – 4a = 8a + 10 - 4a = 4a + 10
N6 (a + b) – (a – b) = (c + b) – (c – b) a + b - a + b = c + b - c + b 2b = 2b
N7 4a + 3 + 2a = 6a + 3 4a + 3 - 2a = 2a + 3 4a ・ 3 ・2a = 24a 4a - (3 ・ 2a) = –2a
Не нашли ответ?
Похожие вопросы