21x – 3 = 6x + 8(0,5 + x) x = 2,5(3x – 1) = 6x + - вопрос №1669948021368052531605 от Зозяська 21.01.2022 15:09

Question

Математика: 21x – 3 = 6x + 8(0,5 + x) x = 2,5(3x – 1) = 6x + 0,5 x =

Зозяська · Answer

21x – 3 = 6x + 8(0,5 + x)21x – 3 = 6x + 4 + 8x21x – 6x – 8x = 4 + 37x = 7x = 7/7 = 12,5(3x – 1) = 6x + 0,57,5x – 2,5 = 6x + 0,57,5x – 6x = 0,5 + 2,51,5x = 3x = 3/1,5 = 2...