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Earn +20 ptsQ: What A unknown or changeable quantity is called a(n) .?
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What represents a unknown or changeable value?
A variable
Why is x taken as the unknown quantity?
Because, x is a variable, so it can mean any number ever known. It is called the "Unknown Quantity" simply because it represents the number that is not known in the equation. For exampe x+1=y So x and y are variables, each represents a number, if y=2 then it wold be x+1=2 and then you can figure out the "Unknown Quantity" which is 1.
What is a variable in algebra?
A variable is a symbol that represents an unknown or changeable number, typically a letter such as x, y, and z.
What is done to a variable represent an unknown quanity?
A variable is assigned to represent an unknown quantity.
What is the term used for a quantity which when substituted for the unknown quantity in an equation satisfies the equation?
It is the solution to the equation or a root of the equation.
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