Question

what is the value of x​

Answer 1

The letter "x" is often used in algebra to mean 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 it's value if we try! a variable doesn't have to be "x", it could be "y","w" or any letter,name or symbol.

Answer 2

Answer:

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