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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).

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

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

An expression does not include an equals sign (=) For eg: 2x+3 would not be an equation but an expression However, 2x+3=0, is definitely an equation with a solution x= -3/2. An expression does not have a definite solution. An expression is a set of terms with mathematical operations combining them. An equation consists of two expressions with an equals sign between them. An expression is a collection of terms and does not have an = sign An equation is a collection of terms but has an = sign between them.

Equation: x+3=3+x (notice the equal sign: equal; equation)Expression: x+3 (notice no equal sign)

Equation: x+3=3+x (notice the equal sign: equal; equation)Expression: x+3 (notice no equal sign)

I don't really think there is a difference, but maybe the difference is that in pre-algebra you learn and practice the basic foudations, like the different steps to solve an equation, and what is a equation, and stuff like that. Begining algebra is where you practice actually solving the easier types of algebra equations.

Related questions

Expression has no answer. a equation has an answer

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

An expression has no equal sign whereas an equation does have an equal sign

An equation is a ploblem with no answer and an expression is a problem with an answer so you'll get different answers with an equation and an expression.

an equation has an equals sign.

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."

Simply put, an expression does not need an equal sign, while an equation does. Equation: x+y=z Expression: x+y

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

simply put, an expression has no "equal to" sign (=). and equation has the "equal" to sign and and inequality has either one of these signs <, >

An expression is a statement of terms and has no equal sign. An equation is a statement of two terms that equal each other.

An expression does not include an equals sign (=) For eg: 2x+3 would not be an equation but an expression However, 2x+3=0, is definitely an equation with a solution x= -3/2. An expression does not have a definite solution. An expression is a set of terms with mathematical operations combining them. An equation consists of two expressions with an equals sign between them. An expression is a collection of terms and does not have an = sign An equation is a collection of terms but has an = sign between them.

Equation: x+3=3+x (notice the equal sign: equal; equation)Expression: x+3 (notice no equal sign)