diff --git a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/40.n4/10.brainstorming/01.p1/textbook.es.md b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/40.n4/10.brainstorming/01.p1/textbook.es.md
index f55d68c5b..6bc878ffe 100644
--- a/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/40.n4/10.brainstorming/01.p1/textbook.es.md
+++ b/00.brainstorming-pedagogical-teams/45.synthesis-structuring/10.math-tools/40.n4/10.brainstorming/01.p1/textbook.es.md
@@ -135,11 +135,6 @@ ECUACIONES DIFERENCIALES
 ! *Ecuaciones diferenciales*
 
 
-
-RESPONDER / COMENTAR :
-(XXX-YY) ...
----------------------
-
 (XXX-YY) ...
 
 RESPONDER / COMENTAR :