Basic Algebra

What word phrase can you use to represent "5x + 2"?

• five times the sum of a number x and two

• two times the sum of a number x and five

• a number x times the sum of five and two

• the sum of five times a number x and two

What is the algebraic expression for                  "the sum of n and 9"?

• n - 9

• n + 9

• n/9

• 9n

take 10 away from s 

• 10 - s 

• s + 10

• s - 10

• s/10

six times the number of girls
Let g = number of girls

• 6 + g

• 6g

• g - 6

What is an algebraic                     expression for                 "the difference of r and 3"?

• r/3

• r + 3

• r - 3

• 3r

7 less than a number d

• 7 - d

• d - 7

7g + 5 + 6g  - 3

• 13g - 3

• 12g + 5

• 13g + 2

• 13g - 2

The sum of 6 and x

• x + 6

• 6/x

• x + 4

• 6x

The total of b and 14 

• 14 - b

• 14/b

• 14 + b 

• b - 14 

5e - 2 + 3e

• 8e - 2

• 8e + (-2)

• 8e + 2

• 2e - 2