решите уравнения: а) 14х+27х=656 б) 81у-38у=645 в)49z-z=384 г)102к-4к=1960
14х+27х=656
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
102к-4к=1960
98к=1960
к=1960/98
к=20
х(14+27)=656
х.41=656
х=656:41
y(81-38)=645
y.43=645
y=645:43
z(49-1)=384
z.48=384
z=384:48
к(102-4)=1960
к.98=1960
к=1960:98
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Verified answer
14х+27х=656
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
102к-4к=1960
98к=1960
к=1960/98
к=20
Verified answer
х(14+27)=656
х.41=656
х=656:41
х=16
y(81-38)=645
y.43=645
y=645:43
у=15
z(49-1)=384
z.48=384
z=384:48
z=8
к(102-4)=1960
к.98=1960
к=1960:98
к=20