两边同时除以5,
4x-10=x+10
4x-x=10+10
3x=20
x=3分之20
猜你喜欢
- 1求函数y=(x-1)三次根号下x^2的极值
- 2三分之二米的二分之一是多少米;二分之一千克是八分之七千克的( ).
- 3长方体相对的面的大小形状都相同,这句话是对的还是错的?正方体的六个面面积一定相等,这句话是对的还
- 420摄氏度,饱和石灰水(甲溶液)加入适量氧化钙粉末,充分反应.
- 5I arrived Penang in Malaysia this morring withmy family.It was sunny and hot.so.we.decided to go to the beach near out h
- 6已知定义在r上的函数f(x)满足f(xy)=f(x)+f(y)求证f(1)=f(-1)=0求证f(x)为偶函数
- 7One day when he was working on his farm,a white crane fell to the ground at his feet的全文
- 8自然界中如何形成雨?
- 9Pfizer(辉瑞制药)怎么读?
- 10The idea is to make students happy and keep healthy.动词不定式作什么成分啊?急用!