diff --git a/notes/.obsidian/plugins/obsidian-activity-history/data.json b/notes/.obsidian/plugins/obsidian-activity-history/data.json
index e59589b..5759e98 100644
--- a/notes/.obsidian/plugins/obsidian-activity-history/data.json
+++ b/notes/.obsidian/plugins/obsidian-activity-history/data.json
@@ -13,7 +13,7 @@
     {
       "path": "/",
       "date": "2022-06-07",
-      "size": 842286
+      "size": 842334
     }
   ],
   "activityHistory": [
@@ -702,7 +702,7 @@
         },
         {
           "date": "2022-06-07",
-          "value": 850
+          "value": 898
         }
       ]
     }
diff --git a/notes/mat/Příklady.md b/notes/mat/Příklady.md
index 20b8197..adbb0b1 100644
--- a/notes/mat/Příklady.md
+++ b/notes/mat/Příklady.md
@@ -124,3 +124,12 @@ $\sqrt{D}=6$
 $x=\frac{b\pm\sqrt{D}}{2a}$
 $x_1=\frac{6+6}{2*2}$
 $x_1=3$
+
+---
+
+$\frac{-26x+14}{4x-2}\ge0$
+$-26x+14\ge0$
+$-26x\ge-14$
+$26x\le14$
+$x\le\frac{14}{26}$
+$x\le\frac{7}{13}$