HP 39gII - Solve the unknown variable

Function app 53
To go directly to a
value
6. Move directly to X =10.
1 0
NOTE to navigate directly to a value, ensure the cursor is in the
independent variable column, in this case, x, before
typing the desired value.
To access the zoom
options
7. Zoom in on X = 10 by a
factor of 4. Note:
NUMZOOM has a setting
of 4.
In
To change font size 8. Display table numbers in
smaller font.
To display the
symbolic definition
of a column
9. Display the symbolic
definition for the F1
column.
>
The symbolic definition of F1 is displayed at the bottom of
the screen.
To change column
width
10. Press 3 times to toggle from showing 3 function
columns to showing 4, then 1, then 2.