Algebraic expressions

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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. It does not have an equality sign.

Tags

CCSS.6.EE.A.2B

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How do you evaluate an algebraic expression?

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To evaluate an algebraic expression, substitute the values of the variables into the expression and perform the arithmetic operations.

Tags

CCSS.6.EE.A.2C

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What does it mean to simplify an algebraic expression?

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Simplifying an algebraic expression means to combine like terms and reduce the expression to its simplest form.

Tags

CCSS.7.EE.A.1

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What is a variable in algebra?

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

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, such as a number in an algebraic expression.

Tags

CCSS.6.EE.A.2B

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What is the difference between an expression and an equation?

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An expression is a combination of numbers, variables, and operations without an equality sign, while an equation states that two expressions are equal.

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How do you solve for a variable in an equation?

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

Tags

CCSS.7.EE.B.4A

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What does '4 less than x' mean in algebraic terms?

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It means to subtract 4 from x, represented as x - 4.

Tags

CCSS.6.EE.A.2A

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What is the sum of two variables?

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The sum of two variables is the result of adding them together, represented as a + b.

Tags

CCSS.6.EE.A.2A

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How do you represent multiplication in algebraic expressions?

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Multiplication can be represented by placing variables next to each other (xy), using a dot (x·y), or using parentheses (x(y)).

Tags

CCSS.6.EE.A.4