Writing One-Step Equations

Oranges cost $2 per pound. Which equation can you use to find, p, the number of pounds of oranges you can purchase if you have $20?

• 2 ÷ p = 20

• 2p = 20

• 2 + p = 20

• 20p = 2

Daniel sells newspaper subscriptions. Daniel is paid $3.50 for each new customer (x) that signs up for the subscription. Which equation represents the amount (y) Daniel earns for selling (x) number of subscriptions in a week?

• y = 3.5x

• y = 35x

• y = 3.5 + x

• y = 3.5

At a restaurant, Coach Fred and three of his friends decided to divide the bill evenly. If each person paid $13 then which equation can you use to find the total cost, x, of the bill?

• 4/x = 13

• 4x = 13

• x/4 = 13

• x/3 = 13

For a show, the Dobie band will earn $15 for each ticket sold. If they sold a total of $3675, write an equation to determine the number of tickets, t, that they sold.

• 15(3675) = t

• 15t = 3675

• 15 + t = 3675

• t - 15 = 3675

Last Friday Trevor had $29. Over the weekend he received some money (m) for cleaning the attic. He now has $41. What equation can be used to find, How much money he received for cleaning the attic?

• 29 + m = 41

• 29 - m = 41

• 29m = 41

• 29 + 41 = m

After paying $5.12 for a salad, Carlos has $27.10 left in his wallet. Which equation can be used to find how much money, m, Carlos had before buying a salad?

• m + 5.12 = 27.10

• m + 27.10 = 5.12

• 5.12 - m = 27.10

• m - 5.12 = 27.10

Tara caught three times as many fish as Devon. Tara caught 63 fish. Which equation can be used to determine how many fish, y, Devon caught?

• 3y = 63

• 3 + y = 63

• 63 - y = 3

• y/3 = 63

When Korey went to the store he noticed each package of diapers cost $8. Which equation can be used to find out how many packages of diapers, p, he can purchase if he has $40?

• 8 - p = 40

• 8p = 40

• 8/p = 40

• 8 + p = 40

Martin earns $14 per hour. Which equation represents how many hours, h, he needs to work to earn $112?

• 14h = 112

• h - 14 = 112

• h + 14 = 112

• 14/ h = 112

Last week Kevin had 42 dollars. He washed cars over the weekend to earn some extra money and now has $95. Which equation can you use to find how much money, x, Kevin earned washing cars?

• x - 42 = 95

• x + 42 = 95

• 42x = 95

• 42 - m = 95