Enable text based alternatives for graph display and drawing entry

Try another version of this question

Write the system of equations as an augmented matrix.

 `{(5d,-,6u,-,4z,=,-85),(-2d,-,6u,-,5z,=,-191),(4d,-,2u,-,2z,=,-8):}` 

 
 

X
MathQuill
   x  x    n  |   | (   ) π DNE
   x    (   ) π DNE
( ) ( ] [ ) [ ] —∞ DNE
< > or All Real Numbers DNE
log logn ln n  | | e 
sin cos tan arcsin arccos arctan  
[more..]