0.7x-6=0.3x+0.4
x=16
猜你喜欢
- 1last may l stayed in santo lusa for a week.that was my (first) trip there.one morning l wanted to (visit) a famous museu
- 2历史上出现过哪些通信方式?人们是怎样通过它们进行联系的
- 3函数f(x)的定义域为(a,b),且对其内任意实数x1,x2均有:(x1-x2)[f(x1)-f(x2)]<0,则f(x)在(a,b)上是_(填函数的单调性有关类型)
- 4OK、 I won't wait the future which i think you will give me.
- 5工程队修一段公路,原计划每天修3.2千米,15天修完.实际每天多修25%,实际提前几天完成?
- 61000平方米等于多少亩
- 7用括号里正确的动词形式填空 I usually _____ (do) my homework in the evening.
- 8什么样的图形是梯形?梯形的腰和底分别指什么?什么样的梯形是等腰梯形?
- 9铁路工人用每根9米的新铁轨替换原来每根6米的旧铁轨,
- 10一个王字旁加一个玉字,念什么?