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An equation is a statement that two things are equal; it has an equal sign which looks like this: =

So if, for example, 2x + 5 = y4 - 27, that's an equation. A collection of numbers and/or letters that does not have an equal sign would be an expression. For example, 3x(9 + x).

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Q: What is the difference between an expression and an equation in algebra?
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What is the difference between an equation and an expression?

Expression has no answer. a equation has an answer


What is the difference between a algebraic equation and a algebraic expression?

An equation has an equal = sign whereas an expression does not.


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The difference between these two is that an expression only contains variables, numbers, and mathematical symbols, and an equation contains two expression with an equal sign that separate them. For example, while an expression is "2x-1", an equation is "2x-1 = 5x."


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similarity: both involve arithmetic operations and/or functions difference: an equation either produces an answer or shows how two expressions are equal, an expression does not produce an answer and is usually a portion of an equation or a larger expression


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