Question

求解这道题！

Answer 1

翻译：3马=30马+2马蹄=18马蹄-靴子=21/2靴子+马*1/2马蹄=？等量关系：马=10马蹄=4靴子=2结果：1/2靴子+马*1/2马蹄=1+10*2=21

Answer 2

准确答案
that the weather was extremely bad as the plane came in to land.

追答

直接引语变间接引语，需要将有关时间状语和称谓改变， 同时将语序调整为陈述语序。

Answer 3

1.  原式按新算法变为

   （x+2）×4-（1+2）x=10

     4x+8-3x=10

         x=2

2. （a+2）x=x

      旦哗测狙爻缴诧斜超铆;   要使等式恒成立

   a+2=1

   a=-1

Answer 4

that there were lightning weather and heavy rain.

Answer 5

the weather was extremely bad as the plane came in to land