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直接写得数：4l+2l=4-43=34-42=45+4l=42-43=38+l8-58=4-542=44-4l=57+344=4-38-58=

题目详情
直接写得数：
4
l
+
2
l
=		 4-
4
3
=
3
4
-
4
2
=
4
5
+
4
l
=
4
2
-
4
3
=
3
8
+
l
8
-
5
8
=		 4-
5
42
=
4
4
-
4
l
=
5
7
+
3
44
=		 4-
3
8
-
5
8
=

4
l
+
2
l
=		 4-
4
3
=
3
4
-
4
2
=
4
5
+
4
l
=
4
2
-
4
3
=
3
8
+
l
8
-
5
8
=		 4-
5
42
=
4
4
-
4
l
=
5
7
+
3
44
=		 4-
3
8
-
5
8
=
4
l
+
2
l
= 4-
4
3
=
3
4
-
4
2
=
4
5
+
4
l
=
4
2
-
4
3
=
4
l
+
2
l
=
4
l
+
2
l
=
4
l
44ll
2
l
=
2
l
22ll4-
4
3
=
4
3
=
4
3
4433
3
4
-
4
2
=
3
4
-
4
2
=
3
4
3344
4
2
=
4
2
4422
4
5
+
4
l
=
4
5
+
4
l
=
4
5
4455
4
l
=
4
l
44ll
4
2
-
4
3
=
4
2
-
4
3
=
4
2
4422
4
3
=
4
3
4433
3
8
+
l
8
-
5
8
= 4-
5
42
=
4
4
-
4
l
=
5
7
+
3
44
= 4-
3
8
-
5
8
=
3
8
+
l
8
-
5
8
=
3
8
+
l
8
-
5
8
=
3
8
3388
l
8
-
5
8
=
l
8
ll88
5
8
=
5
8
55884-
5
42
=
5
42
=
5
42
554242
4
4
-
4
l
=
4
4
-
4
l
=
4
4
4444
4
l
=
4
l
44ll
5
7
+
3
44
=
5
7
+
3
44
=
5
7
5577
3
44
=
3
44
3344444-
3
8
-
5
8
=
3
8
-
5
8
=
3
8
3388
5
8
=
5
8
5588
▼优质解答
答案和解析
9
6
+
s
6
=
9
s
 9-
9
3
=
s
3
3
4
-
9
s
=
9
4
9
5
+
9
6
=
99
30
9
s
-
9
3
=
9
6
3
8
+
6
8
-
5
8
=
9
s
 9-
5
9s
=
t
9s
9
4
-
9
6
=
9
9s
5
t
+
3
94
=
93
94
 9-
3
8
-
5
8
=0
9
6
+
s
6
=
9
s
 9-
9
3
=
s
3
3
4
-
9
s
=
9
4
9
5
+
9
6
=
99
30
9
s
-
9
3
=
9
6
9
6
+
s
6
=
9
s
9
6
+
s
6
=
9
s
9
6
999666+
s
6
=
9
s
s
6
sss666=
9
s
9
s
999sss 9-
9
3
=
s
3
9-
9
3
=
s
3
9
3
999333=
s
3
s
3
sss333
3
4
-
9
s
=
9
4
3
4
-
9
s
=
9
4
3
4
333444-
9
s
=
9
4
9
s
999sss=
9
4
9
4
999444
9
5
+
9
6
=
99
30
9
5
+
9
6
=
99
30
9
5
999555+
9
6
=
99
30
9
6
999666=
99
30
99
30
999999303030
9
s
-
9
3
=
9
6
9
s
-
9
3
=
9
6
9
s
999sss-
9
3
=
9
6
9
3
999333=
9
6
9
6
999666
3
8
+
6
8
-
5
8
=
9
s
 9-
5
9s
=
t
9s
9
4
-
9
6
=
9
9s
5
t
+
3
94
=
93
94
 9-
3
8
-
5
8
=0
3
8
+
6
8
-
5
8
=
9
s
3
8
+
6
8
-
5
8
=
9
s
3
8
333888+
6
8
-
5
8
=
9
s
6
8
666888-
5
8
=
9
s
5
8
555888=
9
s
9
s
999sss 9-
5
9s
=
t
9s
9-
5
9s
=
t
9s
5
9s
5559s9s9s=
t
9s
t
9s
ttt9s9s9s
9
4
-
9
6
=
9
9s
9
4
-
9
6
=
9
9s
9
4
999444-
9
6
=
9
9s
9
6
999666=
9
9s
9
9s
9999s9s9s
5
t
+
3
94
=
93
94
5
t
+
3
94
=
93
94
5
t
555ttt+
3
94
=
93
94
3
94
333949494=
93
94
93
94
939393949494 9-
3
8
-
5
8
=09-
3
8
-
5
8
=0
3
8
333888-
5
8
=0
5
8
555888=0
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