14.8x(x-5)=13x+106
14.8x-74=13x+106
14.8x-13x=106+74
1.8x=180
x=100
猜你喜欢
- 1如图，在直三棱柱ABC-A1B1C1中，E，F分别是A1B，A1C的中点，点D在B1C1上，A1D⊥B1C．求证： （1）EF∥平面ABC； （2）平面A1FD⊥平面BB1C1C．
- 2用鲜花排成一中空的方阵,最外层有44盆,最内层有28盆.这个方阵共有多少盆花
- 3用方程式表达下列物质的转换过程 C→CO2→H2CO3→CaCO3
- 4Today is Wednesday,the morning meal later I went to school,when I went to noon a trip to xinhua b
- 55X=3y+180 这个方程怎么解
- 6高二化学物料守恒
- 7Here is the weather f______ for tomorrow
- 8five的i与什么单词的i读音相同
- 9color,and,the,what,key,the,quilt,are,连词成句
- 10Bravery never goes out of fashion.