Question

(6,3-х)*1,02=3,57

Пж

Answer 1

(6,3-х)×1,02=3,57
6,3-х=3,57÷1,02
6,3-х=3,5
х=6,3-3,5
х=2,8
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проверка:
(6,3-2,8)×1,02=3,57
3,57=3,57