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Write the following using algebraic notation, using the letter x for any
unknown numbers:
I think of a number, multiply it by two, then subtract nine.
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Answer 1

In algebraic notation, the given situation can be represented as 2x - 9.

Step-by-step explanation:

In algebraic notation, you can represent the given situation as follows:

Let x be the unknown number.

The number multiplied by two can be written as 2x.

Subtracting nine from the result gives: 2x - 9.

So, the algebraic expression representing the given situation is 2x - 9.

Learn more about algebraic notation