Evaluating Algebraic Expressions

Front

What is an algebraic expression?

Back

An algebraic expression is a mathematical phrase that can include numbers, variables, and operation symbols (like +, -, *, /).

Front

Evaluate 13 + 6x for x = 2.

Back

25

Front

Evaluate 3x + 8 if x = 2.

Back

14

Front

What does it mean to evaluate an expression?

Back

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

Front

Evaluate 2(a - 5) + 2 when a = 15.

Back

22

Front

Evaluate 5x + 2 for x = 1.

Back

7

Front

What is the value of b² + 4 when b = 3?

Back

13

Front

What is a variable in algebra?

Back

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

Front

What is the order of operations in mathematics?

Back

The order of operations is a set of rules that determines the sequence in which calculations are performed: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

Front

Evaluate 4x - 3 when x = 5.

Back

17