Update textbook.en.md

5 years ago · 32b438cf9b
1 changed files with 0 additions and 2 deletions
--- a/12.temporary_ins/05.coordinates-systems/20.cartesian-coordinates/10.main/textbook.en.md
+++ b/12.temporary_ins/05.coordinates-systems/20.cartesian-coordinates/10.main/textbook.en.md
@ -4,8 +4,6 @@ published: true
 routable: false
 visible: false
 lessons:
    - slug:
      order:
    - slug: cartesian-coordinates-linear
      order: 1
 ---