The number is 11.
What is a number ?
"A number is an arithmetic value used for representing the quantity and used in making calculations. A written symbol like “3” which represents a number is known as numerals.
A number system is a writing system for denoting numbers using digits or symbols in a logical manner. "
"Number words are the alphabetical form of numbers. As the name suggests, these are numbers written in words."
From the statement it is clear that,
[tex]2x=99-7x\\9x = 99\\x = 11[/tex]
Hence, the number is 11.
To know more about numbers here
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