解方程 (x-120)/70=(x-120)/90
答案:4 悬赏:20 手机版
解决时间 2021-01-16 10:32
- 提问者网友:树红树绿
- 2021-01-15 19:10
解方程 (x-120)/70=(x-120)/90
最佳答案
- 五星知识达人网友:神的生死簿
- 2021-01-15 19:36
(x-120)/70=(x-120)/90
70(x-120)=90(x-120)
20(x-120)=0
x-120=0
x=120
祝学习进步,望采纳~~
70(x-120)=90(x-120)
20(x-120)=0
x-120=0
x=120
祝学习进步,望采纳~~
全部回答
- 1楼网友:鸠书
- 2021-01-15 22:49
解:90(x-120)=70(x-120)
x=120
x=120
- 2楼网友:轻雾山林
- 2021-01-15 21:31
(x-120)÷70=(x-120)÷90
解: 70(x-120)=90(x-120)
90(x-120)-70(x-120)=0
20(x-120)=0
x-120=0
x=120
解: 70(x-120)=90(x-120)
90(x-120)-70(x-120)=0
20(x-120)=0
x-120=0
x=120
- 3楼网友:杯酒困英雄
- 2021-01-15 20:57
(x-120)/70=(x-120)/90;
x=120;
x=120;
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