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What is x

The letter x is used in algebra (Math) to mean a value that is not yet known.

What is x

Sometimes we call it variable or unknown.

In x+2=9, x is variable but we can work out if we try!

A variable does not have to be ‘x’ it may be ‘y’ ‘w’ ‘z’ or any letter named or symbol.

The above question could be asked what does x mean in math.

Examples:1 what is x

Find the value of x, if x+9=4.



subtracting ‘9’ on both sides




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