Решите уравнения надо d + 1/5 = 4/7 + 3/7 f + - вопрос №3445402154737454737254 от liza0281 31.01.2020 15:50

Question

Математика: Решите уравнения надо d + 1/5 = 4/7 + 3/7 f + 4/5 = 4/7 + 3/7 b + 2/5 = 4/7 + 3/7 например 3/3 это я так зделал дробь

liza0281 · Answer

D + 1/5 = 4/7 + 3/7d + 1/5 = 7/7d + 1/5 = 1d = 1 - 1/5d = 5/5 - 1/5d = 4/54/5 + 1/5 = 4/7 + 3/75/5 = 7/71=1f + 4/5 = 4/7 + 3/7f + 4/5 = 7/7f + 4/5 = 1f = 1 - 4/5f = 5/5 - 4/5f = 1/51/5 + 4/5 = 4/7 + 3/75/5 = 7/71 = 1b + 2/5 = 4/7 + 3/7b + 2/5 = 7/7b + 2/5 = 1b = 1 - 2/5b = 5/5 - 2/5b = 3/53/5 + 2/5 = 4/7 + 3/75/5 = 7/71 = 1...