两人买烧鸡，甲差18 元，乙差15元，合买差 5元，烧鸡多少钱?steemCreated with Sketch.ericandryan (78)in #cn • 3 years ago 两人买烧鸡，甲差18 元，乙差15元，合买差 5元，烧鸡多少钱? 三元三次方程，假设甲有x元, 乙有y元, 烧鸡是z元： x+18=z y+15=z x+y+5=z 方程3减方程2 x-10=0 所以x=10, z=28, y=13 Steem 坐火箭🚀! 您可以通过 Steem2USDT 交换 STEEM/SBD 到 USDT (TRC-20)！ 在 SteemYY 免费注册 STEEM 帐户！ #math #blog
!ask 两人买烧鸡，甲差18 元，乙差15元，合买差 5元，烧鸡多少钱?
烧鸡33元。
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Hello @ericandryan! You are Remarkable!
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