evaluating expressions

A letter of the alphabet used in a math problem.

• formula

• algebraic

• number

• variable

Evaluate the following expression: x - 6

Where x = 32

• 38

• 26

• 18

• 4

Evaluate the following expression: 2b + 3

Where b = 7

• 30

• 12

• 17

• 24

Evaluate the expression:

x ÷ 4 if x = 80

• 4

• 20

• 40

• 80

• 25

• 15

• 10

• 7

What is the value of the expression
x² + y² + x - y 
when x = -1 and y = 3

• 6
• 8
• 12
• 16

evaluate bc + 5a  
when  a = 3, b = 4, and c = -6

• 9
• 38
• -38
• -9