Question

102k-4k=1960 14x+27x=656

Answer 1

102k-4k=1960
98k=1960
k=1960:98
k=20
14x+27x=656
41x=656
x=656:41
x=16

Answer 2

102к-4к=1960
98к=1960
к=1960:98
к=20
102*20-4*20=1960
1960=1960

14х+27х=656
41х=656
х=656:41
х=16
14*16+27*16=656
656=656