Evaluating Algebraic Expressions

Front

Evaluate 3x + 8 if x = 2

Back

14

Front

Evaluate x - 20 when x = 3

Back

-17

Front

Evaluate 6a - 3d when a = 1, d = 2

Back

0

Front

Evaluate -4b + 4 when b = 3

Back

-8

Front

Evaluate 4y if y = 3

Back

12

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 given numbers.

Front

What is a variable in algebra?

Back

A variable is a symbol, often a letter, that represents an unknown value.

Front

What is the coefficient in the expression 5x + 3?

Back

The coefficient is 5, which is the number multiplied by the variable x.

Front

What is the constant in the expression 2x + 7?

Back

The constant is 7, which is a fixed value that does not change.