diff --git a/SimpleDocument.tex b/SimpleDocument.tex
index 7527556..1812b72 100644
--- a/SimpleDocument.tex
+++ b/SimpleDocument.tex
@@ -295,7 +295,7 @@ Esame 2020-06-25 Ex 3\\
     \parbox{\textwidth}{%
 Consider this minimization problem:\\
 \begin{align*}
-mix:  &8x_1 + 3x_2 + x_3 \\
+min:  &8x_1 + 3x_2 + x_3\\
     	&2x_1 + 7x_2 - 5x_3 = 4\\
     	&4x_1 - 3x_2 + x_3 \geqq 8\\
     	&x_1 \geqq 0\\
@@ -308,7 +308,7 @@ Write the corresponding canonical form.
 \\
 Soluzione:\\
 \begin{align*}
-mix:  &8x_1 + 3x_2 + x_3^+ - x_3^- \\
+min:  &8x_1 + 3x_2 + x_3 \\
     	&2x_1 - 7x_2 - 5x_3^+ + 5x_3^- \geqq 4\\
     	&-2x_1 + 7x_2 + 5x_3^+ - 5x_3^- \geqq -4\\
     	&4x_1 + 3x_2 + x_3^+ -x_3^- \geqq 8\\