3x加4x=66解方程,要过程
如题所述
3x+4X=66
7X=66
X=66÷7
X=9.4
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第1个回答 2015-02-10
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/0e2442a7d933c89552a6ce56d51373f0830200c6?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
追问不用写答案吗
追答答案就是66/7
没办法简化
追问谢谢
那么
追答怎么
追问42x减15x=5.2
怎么解方程
42x减15x=5.2怎么解方程
追答![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/730e0cf3d7ca7bcbdce89a02ba096b63f624a808?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
追问非常感谢
追答不客气
本回答被提问者和网友采纳
第2个回答 2015-02-10
3x+4x=7x
7x=66
x=66\7
第3个回答 2015-02-10
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/0824ab18972bd4074cab82d07f899e510fb309aa?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
追答3x+4x=7x
7x=66
x=66\7
第4个回答 2015-02-10
7X=66 X=7分之66