Question

what is a variable?​

Answer 1

Answer:

In mathematics, a variable is a symbol which functions as a placeholder for varying expression or quantities, and is often used to represent an arbitrary element of a set. In addition to numbers, variables are commonly used to represent vectors, matrices and functions. 

Step-by-step explanation:

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Answer 2

Answer:

A variable is also called as a unknown quantity

Step-by-step explanation:

if is represented by x,y,z

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