Concepts 21-33

(-7) = c − 6

• (-1)

• 1

• (-13)

• 13

Last week Zen practiced his piano lessons for a total of 9 hours. This is 4 hours less than the previous week. Write the equation showing how many hours Zen practiced the previous week.

• x − 4 = 9

• 4 − x = 9

• x − 9 = 4

• 9 − x = 4

(-32) = (-8m)

• 4

• (-4)

• 24

• (-24)

• (-75)

• 75

• 10

• (-10)

• (-3)

• (-3)

• (-2/3)

• 3

• 2/3

• (-1)

• 
• 
• 
• 

It costs $6.50 to enter the zoo. Each cup of food to feed the lions costs $2.50. If you have $20.00, how many cups can you buy?

• 5

• 4

• 3

• 6

• 8

5 = (-8n) − 3

• (-1)

• (-1/4)

• 0

• 1

4(x + 2) = 28

• x = 5

• x = 6

• x = 7

• x = 22

• (-25)

• (-15)

• (-1)

• (-1/2)