one variable expressions with algebra tiles

Look at the model. Which of the following algebraic expressions could it represent?

• 3x + 4 + 2x + 1

• 7x + 3x

• 3x + 2x

• 4 + 1

Look at the model. Which of the following algebraic expressions could it represent?

• 2x + 5 + 4x + 4

• 2x + 3 + 4x + 3

• 3x + 3x

• 2 + 4

Look at the model. Which of the following algebraic expressions could it represent?

• 3x + 4 + 2 + 2 

• 3x + 4 + 2x + 2 - x - 1

• 3x - 4 + 2 - 2 -x

• 3x + 4 + 2 + 2  - 1 - 1

r - 3 = 17

• 20

• 14

• 21

• 17

r + 15 = 34

• 49

• 15

• 19

• 40

x + 10 = 23

• 33

• 13

• 20

• 30

x + 7 = 23

• 30

• 20

• 16

• 17

What term is represented by the algebra tiles?

• 3

• -3

• 3x

• 3x²

What term is represented by the algebra tiles?

• 5

• -5

• -5x

• -5x²

What term is represented by the algebra tiles?

• 2x

• 2

• 2x²

• -2x²