解方程 2x+3分之x=3分之56 原因!
人气：402 ℃ 时间：2020-03-25 14:26:03
解答
2x+x/3=56/3
左式相加：7x/3=56/3
两边同乘3：7x=56
解得x=8还是不大懂，为什么这样解啊？那一步不懂左式相加：7x/3=56/3这一步2x+x/3=6x/3+x/3=7x/3明白？
推荐
猜你喜欢
- Why don`t you talk to her about it 同义句__ __ talking to him about it?
- 坚持做一件事情就会成功,这句用一个四字成语概括
- 两捆电话线的长度相等,如果第一捆剪去20米,第二捆剪去4米,那么第二捆剩下的长度正好是第一捆余下长度的3
- You're shorter than me的问句 My legs are longer than yours的问句 She is 2years younger than you
- 已知三角形ABC中,A(2,-1),B(3,2),C(-3,-1),BC边上高为AD,求向量AD及D点坐标
- My father will come back in a week .同义句转换（ )( )a week ()my father comes back.
- I don't regret the things I've done,I regret the things I didn't do when I had the chance.不为做过
- 例句：书似阶梯,开启心灵之门；书似灯塔,照亮前行之路.仿句：(>_
