解方程．x-89=56 23+x=45．_爱下问搜题

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问题解答题

解方程．
x-

8

9

=

5

6

2

3

+x=

4

5

．

答案

（1）x-

8

9

=

5

6

，

x-

8

9

+

8

9

=

5

6

+

8

9

，

x=1

29

54

；

（2）

2

3

+x=

4

5

，

2

3

+x-

2

3

=

4

5

-

2

3

，

x=

2

15

．

问答题简答题

配煤炼焦有什么好处？

问答题

Write a letter to apply for a position in a local English training school. In the description you should include the following items:

1) what is the position

2) your experience and related ability.