Evaluating Expressions with One Variable

Simplify the expression:
8(4b - 5)

• 32b + 40

• 32b - 40

• 32(b - 40)

• 84b - 85

(x - 6)4

• 24 - 4x

• 4x - 6

• x - 24

• 4x - 24

the difference of 3 times a number and 7

• 3 - 7n

• 3n - 7

• 3n + 7 

• 3÷7n

an expression that contains numbers, operations, and variables

• numerical expression

• equation

• algebraic expression

The coefficient is ____

• 14

• y

• multiply

4 + b

• numerical expression

• algebraic expression

• equation

How many terms are in this expression?

• 1

• 2

• 3

• 4

50 - 4b =

The variable is ___

• 40

• subtract

• 4

• b

A letter or symbol that stands for a number

• Variable

• Expression

• Constant

• Term

Which one is an algebraic expression?

• a + b - c

• 12 x 4

• 16² - 9

• (13 + 8)