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Simplify: 6x + 12x + 3 y

• 21x

• 18x + 3y

• 72x + 3y

• 6x + 15y

Simplify: 
-8n - 7(n+5)

• -15n - 35
• -1n -35
• -15n +35
• n +5

Which words could be used to describe the following expression? 6h

• addition

• subtraction

• multiplication

• division

A _____________ is a symbol, usually a letter that stands for a number. 

• coefficient
• algebraic expression
• variable
• term

Identify the constant of the algebraic expression:

3x + 5

• 3

• x

• 5

• 3x and 5

the factor in a term that sits next to the variable

• equation

• solution

• expression

• coefficient

Are the following expressions equivalent?

4( y - 1) and 1 + 4y

• yes

• no

Translate this phrase into an algebraic expression.
8 less than the product of 4 and a number
Use the variable m to represent the unknown number.

• 8 - 4m
• 8m - 4
• 8m + 4
• 4m - 8

Ten decreased by four times a number.  

• 10 - 4x
• 4x - 10 
• 10 - x
• 10/4x

Evaluate 2r + 1

if r = 3

• 24

• 5

• 7

• 8