Evaluating Algebraic Expressions

Front

Evaluate the expression when x = 8: 7(6 + 3 − x)

Back

7

Front

Evaluate when x = 8: 2x + x - 10

Back

14

Front

Evaluate 4m - 2 for m = 4

Back

14

Front

Evaluate 3x + 8 if x = 2

Back

14

Front

Evaluate 12 ÷ a + 8 when a = 4

Back

11

Front

What is an algebraic expression?

Back

An algebraic expression is a mathematical phrase that can include numbers, variables, and operation symbols.

Front

What does it mean to evaluate an expression?

Back

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

Front

What is the order of operations in mathematics?

Back

The order of operations is Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right), often abbreviated as PEMDAS.

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.

Front

What is the difference between an expression and an equation?

Back

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