优质解答
①
(26-8×2)÷2
=(26-16)÷2
=10÷2
=5
8-5=3
答：笼内有鸡3只,兔5只.
②
(8×4-26)÷2
=(32-26)÷2
=6÷2
=3
8-3=5
答：笼内有鸡3只,兔5只.
③
26÷2-8
=13-8
=5
8-5=3
答：笼内有鸡3只,兔5只.
④设,笼内有鸡x只,兔8-x只.
2x+4(8-x)=26
2x+32-4x=26
2x=6
x=3
8-3=5
答：笼内有鸡3只,兔5只.
①
(26-8×2)÷2
=(26-16)÷2
=10÷2
=5
8-5=3
答：笼内有鸡3只,兔5只.
②
(8×4-26)÷2
=(32-26)÷2
=6÷2
=3
8-3=5
答：笼内有鸡3只,兔5只.
③
26÷2-8
=13-8
=5
8-5=3
答：笼内有鸡3只,兔5只.
④设,笼内有鸡x只,兔8-x只.
2x+4(8-x)=26
2x+32-4x=26
2x=6
x=3
8-3=5
答：笼内有鸡3只,兔5只.