Предмет: Геометрия, автор: umnyjumnyj165

пж срочно матем задача..... ​

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Автор ответа: Yarik270202
1
х+2х+6х=198
9х=198
х=22 - собрал отец
22*2=44 - собрала дочь
6*22=132 - собрал сын
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