Use three separate single-line IF statements to assign the appropriate text to the variable answer depending upon the value of the variable x. The three possible texts are:
"The value of x is less than zero."
"The value of x is equal to zero."
"The value of x is greater than zero."
Then combine the three into an IF statement with anther IF statement inside.
Single-line version:
```
IF x < 0 THEN LET answer = "The value of x is less than zero." IF x = 0 THEN LET answer = "The value of x is equal to zero." IF x > 0 THEN LET answer = "The value of x is greater than zero."
```
Combined Version:
```
IF x < 0 THEN
LET answer = "The value of x is less than zero."
ELSE
IF x > 0 THEN
LET answer = "The value of x is greater than zero."
ELSE
LET answer = "The value of x is equal to zero." END IF
END IF
```
Note: In the combined version, the condition x = 0 is not stated explicitly but arrived at by ruling out the other two possibilities.
There are several other variations of the combined version that produce equivalent results.
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