Algebraic Expressions Evaluation

Front

What is an algebraic expression?

Back

An algebraic expression is a mathematical phrase that can include numbers, variables, and operation symbols. For example, 3x + 5 is an algebraic expression.

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How do you evaluate an algebraic expression?

Back

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

Front

Evaluate the expression 3x + 5 for x = 2.

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11

Front

What is the formula for the perimeter of a rectangle?

Back

The perimeter P of a rectangle is given by the formula P = 2(length + width).

Front

Find the perimeter of a rectangle with length 4x and width 6.

Back

The perimeter is 20x.

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Back

9

Front

What does it mean to simplify an algebraic expression?

Back

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

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Back

Front

Evaluate the expression 4y - 2z for y = 3 and z = 2.

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8

Front

What is a variable in algebra?

Back

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