Algebra Practice

Front

What is a constant in an algebraic expression?

Back

A constant is a fixed value that does not change. In the expression -4x - 8, the constant is -8.

Front

What are like terms in algebra?

Back

Like terms are terms that have the same variable raised to the same power. For example, 3x and 5x are like terms, but -4ab and -4a are not.

Front

What is a coefficient in an algebraic expression?

Back

A coefficient is a numerical factor that multiplies a variable. In the expression -4x - 8, the coefficient of x is -4.

Front

How do you simplify the expression 5n + 6n + 3n?

Back

Combine the like terms: 5n + 6n + 3n = 14n.

Front

What does 'five less than twice a number' mean in algebraic terms?

Back

It means 2x - 5, where x is the number.

Front

What is the difference between a variable and a constant?

Back

A variable is a symbol that represents an unknown value, while a constant is a fixed value.

Front

What is the purpose of simplifying algebraic expressions?

Back

Simplifying makes expressions easier to work with and helps in solving equations.

Front

What is an algebraic expression?

Back

An algebraic expression is a combination of numbers, variables, and operations (like addition and multiplication) without an equality sign.

Front

What does it mean to evaluate an expression?

Back

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

Front

What is the difference between an equation and an expression?

Back

An equation states that two expressions are equal, while an expression does not have an equality sign.