Решите уравнение: 14x+27x=656, 81y-38y=645, 49z -z=384, 102k-4k=1960
Виктория41116
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15.06.2019 22:40
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2
41х=656
х=656/41
х=16
81у-38у=645
43у=645
у=645/43
у=15
49z-z=384
48z=384
z=384/48
z=8
102k-4k=1960
98k=1960
k=1960/98
k=20