Evaluating Expressions

Front

Evaluate 3x - 7 if x = 6

Back

11

Front

Evaluate 5x + 4y if x=3 and y=2

Back

23

Front

Write an algebraic expression for '8 less than a number'.

Back

x - 8

Front

Evaluate the expression for x = 2: 4 - x

Back

2

Front

Evaluate 3d if d = 5

Back

15

Front

What is an algebraic expression?

Back

A mathematical phrase that can include numbers, variables, and operation symbols.

Front

What does it mean to evaluate an expression?

Back

To calculate the value of an expression by substituting variables with numbers.

Front

What is a variable in mathematics?

Back

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

Front

What is the difference between an expression and an equation?

Back

An expression does not have an equals sign, while an equation does.

Front

Evaluate 2x + 3 if x = 4

Back

11