When we don't know the number in an algebraic expression, that is called substitution an operation a variable

asked Jul 8, 2019 232k views

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When we don't know the number in an algebraic expression, that is called

substitution

an operation

a variable

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4 votes

This is called a variable

Sharpper answered Jul 11, 2019

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2 votes

When we don't know the number, we represent it as a letter such as x or y. These are called variables.

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