3.1-3.3 Linear Expressions

Which of these are like terms in the following expression:

3x + 9x + 2x²

• 7, 24y

• 3x, 9x

• 3x, -9x

• 3x, -9x, 2x²

What are the like terms in the following expression?

5x + 8 + 2x

• 5x, -2x

• 5x, 2x

• 5x, 8

• 8, -2x

Simplify the expression  $2x-6-2$  

•  $-6x$  

•  $2x-4$  

•  $2x-8$  

•  $-2x$  

Simplify the expression  $4x+3-6x-2x-1$  

•  $-2x$  

•  $2$  

•  $-4x+2$  

•  $-1x$  

The distributive property describes __________ .

• how often my teacher passes out Oriole stickers.

• the method that allows Santa Claus to distribute Christmas gifts to every child in the world in a single night

• how multiplication interacts with addition

• how order of operations changes once we begin using fractions

Simplify the expression:
6 + 2(7x - 3) 

• 14x + 12
• 14x
• 14x - 12
• 56x - 24

(3x + 5) + (2x + 1) 

• 5x + 5
• 5x + 6
• x + 4
• 6x + 5

(-m + 3) + (7m – 1)

• -8m + 2
• 6m + 2
• -8m + 4
• -6m + 2

(7a + 4) - (9a + 2)

• -2a + 6
• 2a + 6
• -2a + 2
• 2a + 2

Find the difference (2x + 6) – (7x + 3).

• -5x + 3
• -5x + 9
• 9x + 9
• 5x + 3