What is an algebraic expression?
Adding and Subtracting Algebraic Expressions

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•
Mathematics
•
7th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
An algebraic expression is a mathematical phrase that includes numbers, variables, and operation symbols (like +, -, *, /). For example, 3x + 5 is an algebraic expression.
2.
FLASHCARD QUESTION
Front
What does it mean to simplify an algebraic expression?
Back
To simplify an algebraic expression means to combine like terms and reduce it to its simplest form.
3.
FLASHCARD QUESTION
Front
What are like terms?
Back
Like terms are terms that have the same variable raised to the same power. For example, 3x and 5x are like terms, while 3x and 4y are not.
4.
FLASHCARD QUESTION
Front
What is a coefficient in an algebraic expression?
Back
A coefficient is a numerical factor that multiplies a variable. For example, in 6f^2, 6 is the coefficient.
5.
FLASHCARD QUESTION
Front
How do you add algebraic expressions?
Back
To add algebraic expressions, combine like terms by adding their coefficients. For example, (-2x + 8) + (4x + 1) simplifies to 2x + 9.
6.
FLASHCARD QUESTION
Front
How do you subtract algebraic expressions?
Back
To subtract algebraic expressions, distribute the negative sign and then combine like terms. For example, (3x^2 + 2x - 1) - 2(x + 4) simplifies to 3x^2 - 9.
7.
FLASHCARD QUESTION
Front
What is the result of simplifying 3x + 2y - 2x + 3y?
Back
The result is x + 5y.
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