Предмет: Математика, автор: modana00

 z+5/14=z+61/70 решите уравнение /-это дробь

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Автор ответа: ТатМих
0
frac{z+5}{14} = frac{z+61}{70}

5(z+5)=z+61
5z+25=z+61
4z=61-25
4z=36
z=9
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