Expressions Review

Simplify the Expression. 
9z  - 21 - 3z + 10

• Simplified
• 9z - 21 - 7
• 9z - 11 -3z
• 6z - 11

4a + 9 + a

• 5a + 9
• 14a
• 3a + 9
• 5a - 9

Simplify    5(2 - 7n)

•  52 - 57n
• 10 - 7n
• 10 - 35n
• 10 + 35n

What is an algebraic expression?

• a letter or a symbol used to represent an unknown value

• an expression that contains numbers, operations, and one or more variables

• a specific number whose values does not change

6 (x + 5)

• Six times X increased by five
• Six times the sum of a number and five
• The quotient of six and a number increased by five
• Five more a number times six

Eight less than the sum of a and 3.

Simplify the expression:

-r -10r

• 11r

• -11r

• 9r

• -11

• 36 times a number

• a number split into 36 equal groups

• 36 taken from a number

• 36 divided by an unknown number

Tags

6-3.3

6(x + -2)

• 6x + -2

• 6x + -12

• 4x

• 6x - 2

Kenneth has g gumballs. Maggie has 29 fewer gumballs than Kenneth. Choose the expression that shows how many gumballs Maggie has.

• g+29

• g-29

• 29g

• g ÷ 29