diff --git a/linear_system_class4 b/linear_system_class4
deleted file mode 100644
index fc20b3b..0000000
--- a/linear_system_class4
+++ /dev/null
@@ -1,24 +0,0 @@
-Matrix A:
-6	-8	-4	8	-5	-9	-9	-8	-8	4
--1	-4	-5	5	-5	9	5	-4	4	1
-4	1	-3	-6	-9	-6	7	7	-3	0
--1	-4	-3	-3	7	-7	-6	-7	7	8
--6	-8	4	-6	-3	-2	7	-7	-3	-6
--6	-3	-4	-2	9	3	-7	4	1	5
-3	-7	5	-7	1	6	0	-4	-3	-5
-3	-3	-4	-6	-9	4	2	-4	8	-3
-3	-8	9	-4	1	-7	2	2	-7	-8
-5	4	-6	3	-6	-2	6	-4	8	-2
-
-
-vector b:
-44
--38
-31
--23
-40
--13
-28
--15
-79
--37
diff --git a/linear_system_class4.txt b/linear_system_class4.txt
new file mode 100644
index 0000000..fc20b3b
--- /dev/null
+++ b/linear_system_class4.txt
@@ -0,0 +1,24 @@
+Matrix A:
+6	-8	-4	8	-5	-9	-9	-8	-8	4
+-1	-4	-5	5	-5	9	5	-4	4	1
+4	1	-3	-6	-9	-6	7	7	-3	0
+-1	-4	-3	-3	7	-7	-6	-7	7	8
+-6	-8	4	-6	-3	-2	7	-7	-3	-6
+-6	-3	-4	-2	9	3	-7	4	1	5
+3	-7	5	-7	1	6	0	-4	-3	-5
+3	-3	-4	-6	-9	4	2	-4	8	-3
+3	-8	9	-4	1	-7	2	2	-7	-8
+5	4	-6	3	-6	-2	6	-4	8	-2
+
+
+vector b:
+44
+-38
+31
+-23
+40
+-13
+28
+-15
+79
+-37