[methods] determining equations for graphs

diff --git a/methods/stuff.md b/methods/stuff.md
index 1f5d04040631716dfbf9a4412b2e007801090b57..cd3aeb07cb8360d595a11befb075a6ab35e1f681 100644 (file)
--- a/methods/stuff.md
+++ b/methods/stuff.md
@@ -106,3 +106,6 @@ where
 - dilation of factor $A$ from $x$-axis
 - dilation of factor $1 \over k$ from $y$-axis
 
+## Finding equations
+
+Solve simultaneous equations on CAS: ![](graphics/cas-simultaneous.png){#id .class width=75px}