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- 40
- 50 subtracted by 10
- 10 less than 50
- The difference between 50 and 10

Q: What are four equivalent expressions for 50-10?

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An equation if both expressions are equal

That means that the two expressions represent the same number.

equivalent

You can use them to find a variable. Lets say you have two equivalent expressions with the same variable... x + 2x - 42 = 0 2x - 28 = 0 If you combine these equivalent expressions you ahve... x + 2x - 42 = 2x - 28 In all of the expressions you have x = 7 There are also other applications but its confusing to explain.

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NAPA 5010

4b-b

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Equivalent expressions.

the answer is a(n) equationequationWhen two expressions are equivalent they can form an equation.

equivalent expressions

A statement that equates two equivalent expressions is called an Identity.

An equation if both expressions are equal

In the same way that you would solve equations because equivalent expressions are in effect equations

That means that the two expressions represent the same number.

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equivalent