4x/5 = 2/3 + 2/5
两边同乘以 15 得
12x = 10 + 6
12x = 16
x = 4/3
一个数的五分之四等于三分之二与五分之二的和,这个数是多少?
一个数的五分之四等于三分之二与五分之二的和,这个数是多少?
数学人气:368 ℃时间:2019-12-14 17:29:30
优质解答
我来回答
类似推荐
猜你喜欢
- 15.Although Anne is happy with her success she wonders ________ will happen to her private life.A.
- 2一桶汽油,当用去1/2后连桶共重850克,当用去1/3后连桶共重1000克,求同的重量是多少克?
- 3气体的摩尔质量是什么哦?要怎么用才最好?
- 4如图,已知Pa=Pb,求证:点P在Ab的垂直平分线上.
- 5两个数相除,商5余7,被除数.除数.商及余数的和是91求除数和被除数
- 6设a为实数,已知函数f(x)=(1/3)x³-ax²+(a²-1)x.当a=1时,求函数f(x)的
- 7文章摘抄
- 8It was Mother's Day,but the young mother was a little unhappy,because she was 800 miles away from her parents.In the mor
- 9最近学校进行了说出你的烦恼 的调查请你用英语写一篇短文
- 10(-2x)^4-(-3x²)²-[-(4x²)²]+3(-x)³·x