3)х:5+65=4000 x:5=4000-65 x:5=3935 x=3935*5 x=19675

Question

3)х:5+65=4000
x:5=4000-65
x:5=3935
x=3935*5
x=19675

Answer 1

Х:5+65=4.000
х:5=4.000-65
(4.000-65=3.935)
х:5=3.935
х=3.935*5
х=19.675
Проверка:
19.675:5+65=4.000
4.000=4.000
Ответ: 19.675