ChrisMarq1705
ChrisMarq1705
15-10-2020
Mathematics
contestada
When f(x) = -3, what is x?
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aidangeissler
aidangeissler
15-10-2020
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!
Hope this helps
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