Answer:
QUESTION
What does x in the equation represent?
ANSWER
The letter "X" is often used in algebra to mean a value that is not yet known . It is called a "VARIABLE" or sometimes an "UNKNOWN". In x + 2 = 7, x is a variable, but we can work out its value if we try! A variable doesn't have to be "X", it could be "Y", "W" or any letter, name or symbol.
Step-by-step explanation:
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