Front

What is a variable in an algebraic expression?

Back

A variable is a symbol, often a letter, that represents an unknown number in an algebraic expression.

Front

What does the expression 3f + 5 represent when f = 8?

Back

29

Front

How do you evaluate the expression 2(a + 3) when a = 4?

Back

14

Front

What is the result of the expression 8c + 6c - 5 when c = 4?

Back

51

Front

What is the value of 7f + f when f = 7?

Back

56

Front

What is an algebraic expression?

Back

An algebraic expression is a mathematical phrase that includes 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 the variables with numbers.

Front

What is the coefficient in the expression 4n + 3?

Back

The coefficient is 4, which is the number multiplied by the variable n.

Front

What is the constant in the expression 5x + 2?

Back

The constant is 2, which is the number that does not change.

Front

How do you combine like terms in the expression 3x + 4x?

Back

You add the coefficients of like terms: 3x + 4x = 7x.