Algebra

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What is an algebraic expression?

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An algebraic expression is a mathematical phrase that can include numbers, variables, and operation symbols. For example, 2x + 3 is an algebraic expression.

Tags

CCSS.6.EE.A.2B

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What does it mean to simplify an expression?

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To simplify an expression means to reduce it to its simplest form by combining like terms and performing operations.

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CCSS.7.EE.A.1

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What is a variable in algebra?

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A variable is a symbol, often a letter, that represents an unknown value in an expression or equation.

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CCSS.6.EE.A.2B

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What is the difference between an equation and an expression?

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An equation states that two expressions are equal, while an expression does not include an equality sign.

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How do you solve for a variable in an equation?

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To solve for a variable, you isolate the variable on one side of the equation using inverse operations.

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CCSS.7.EE.B.4A

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What does it mean to evaluate an expression?

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To evaluate an expression means to calculate its value by substituting the variables with specific numbers.

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CCSS.6.EE.A.2C

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What is the distributive property?

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The distributive property states that a(b + c) = ab + ac, meaning you can distribute a number across a sum.

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CCSS.3.OA.B.5

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What is a coefficient?

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A coefficient is a numerical factor in a term of an algebraic expression. For example, in 4x, 4 is the coefficient.

Tags

CCSS.6.EE.A.2B

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What is a constant in algebra?

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A constant is a fixed value that does not change. For example, in the expression 3x + 5, 5 is a constant.

Tags

CCSS.6.EE.A.2B

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What does it mean to combine like terms?

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Combining like terms means to add or subtract terms that have the same variable raised to the same power.

Tags

CCSS.7.EE.A.1