Algebraic Expressions

Front

What is a variable in algebra?

Back

A variable is a symbol, often a letter, that represents a number that can change or vary.

Front

What is a constant in algebra?

Back

A constant is a fixed value that does not change.

Front

Evaluate the expression: 5 + 3x when x = 2.

Back

11

Front

What is a numerical coefficient?

Back

A numerical coefficient is a number that multiplies a variable in an algebraic expression.

Front

Identify the unlike terms from the following: 4a, 5b, 4a, 6c.

Back

5b, 6c

Front

What is an algebraic expression?

Back

An algebraic expression is a combination of numbers, variables, and operations.

Front

Simplify the expression: 3x + 4x.

Back

7x

Front

What does it mean to evaluate an expression?

Back

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

Front

What is the difference between like terms and unlike terms?

Back

Like terms have the same variable raised to the same power, while unlike terms do not.

Front

Solve for x: 2x + 3 = 11.

Back

x = 4