Автор - belovapolina111

Решите уравнения 17х-4х=195; (3х+10х)×8=312

Ответ

Автор - Romella
17х-4х=195
13х=195
х=195:13
х=15

(3х+10х)*8=312
13х*8=312
104х=312
х=312:104
х=3

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