1) 2/7х +5/14х=18 2)1/9х +15/18х=14 - вопрос №847840012751418219151814 от kami179 18.04.2021 20:26

Question

Математика: 1) 2/7х +5/14х=18 2)1/9х +15/18х=14

kami179 · Answer

1) 2/7х + 5/14х = 185х + 4х = 2529х = 252х = 252 ÷ 9х = 28ответ: х = 28.2) 1/9х + 15/18х = 141/9х + 15/18х = 14., х ≠ 01/9х + 5/6х = 1417/18х = 1417 = 252х252х = 17х = 17/252., х ≠ 0ответ: х = 17/252....