Answer:

Step-by-step explanation:
We need to find the value of x so that the value of given function becomes 21 .
We have ,

Now , for finding x ,
Answer:
So normally you would say it as
\ /
<em>2 and 1/2</em>
/ \
<em>(2 1/2)</em>
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*eliza*
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It’s not a function
That’s all I know sorry!
The mathematical sentance would be, 740 - 14 = 726, hope this helps.:D