Algebra Like Terms and Evaluating Expressions

Combine like terms. (Green tiles are "x" and yellow tiles are"1")

• 5x + 6

• 11x

• 11

• 6 - 5x

What term is represented by the algebra tiles?

• 6

• -6

• 6x

• -6x²

Simplify the following expression:

3 + 5x + 8 + 2x

• 7x² - 11

• 7x² + 11

• 7x-11

• 7x + 11

Evaluate the expression for the given value:

4x + 6 for x = 7

• 53

• 17

• 34

• 168

For a monthly family cookout, David buys 3 packages of hot dogs and 4 packages of hamburger patties. Hot dog packages each contain x hot dogs. Hamburger packages each contain y hamburger patties. Complete the expressions for the total number of hot dogs and hamburger patties David buys for 6 cookouts. 

6( ​ (a)   x + ​ (b)   y)

​ (c)   x + ​ (d)   y

• 3

• 4

• 18

• 24

• 7

For a monthly family cookout, David buys 3 packages of hot dogs and 4 packages of hamburger patties. Hot dog packages each contain x hot dogs. Hamburger packages each contain y hamburger patties. Complete the expressions for the total number of hot dogs and hamburger patties David buys for 6 cookouts. 6( ​ (a)   x + ​ (b)   y)

​ (c)   x + ​ (d)   y

• 3

• 4

• 18

• 24

• 7

Find the value of the expression.

• -12

• 12

• 14

• -14

b² + 4
when b = 3

• 10

• 12

• 13

• 11

Evaluate when a = 15:
2(a - 5) + 2

• 22

• 27

• 14

• 7

Evaluate the expression when x = 8:  
7(6 + 3 − x)

• 72

• 56

• 21

• 7