問(wèn)題已解決
老師這種詳細(xì)的解二元一次方程,有沒(méi)有詳細(xì)的解答過(guò)程
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您好,看看題目給你解答
2024 05/16 11:51
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84785038 ![](/wenda/_nuxt/img/reply1.d92ea43.png)
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2024 05/16 11:57
老師,打字不方便,你可以寫(xiě)草稿紙上拍給我即可
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小愛(ài)老師 ![](/wenda/_nuxt/img/reply2.28c7604.png)
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2024 05/16 12:02
1式:0.22=a+1.3(b-a)
2式:0.16=a+0.9(b-a)
解法:(b-a)設(shè)為一個(gè)整體x
變形1式:a=0.22-1.3x
帶入2式:0.16=0.22-1.3x+0.9x? ? ?x=0.15即(b-a)=0.15
帶入1式:0.22=a+1.3*0.15? ?a=0.025
(b-a)=0.15? a=0.025? ?b=0.025+0.15=0.175
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84785038 ![](/wenda/_nuxt/img/reply1.d92ea43.png)
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2024 05/16 12:34
好的,謝謝老師
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小愛(ài)老師 ![](/wenda/_nuxt/img/reply2.28c7604.png)
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2024 05/16 12:36
不客氣的,期待你的好評(píng)哦
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