21+26-x+17=50
64-x=50
x=64-50
x=14
猜你喜欢
- 1在等腰梯形ABCD中,AD平行于BC,对角线AC垂直于BD于点O,AE垂直于BC,DF垂直于BC,AD=4,BC=8,则AE +EF=?
- 250×38.2×0.用简便方法计算
- 3besides 和expect区别,具体应用
- 4若集合A{yⅠy=-x^2+2} ,B={yⅠy=x^2-2x },则 A交集B是多少?
- 5I have a party __ my friends
- 6青霉素是由哪种真菌产生的
- 7We should speak to the old man like that.(改为含被动语态的否定句)
- 8i have been to shanghai为什么加been?
- 9their teachers are as friengly to students as ___(we)
- 10play with toys可不可以说成play toys 就像play basketball