Addition and Subtraction Equations Answers

Gamal spent $12.50 at the book store. The difference between the amount he spent at the video game store and the amount he spent at the book store was $17. The equation can be used to represent this situation, where d is the amount Gamal spent at the video game store. Which equation is an equivalent equation that can be used to find the amount Gamal spent at the video game store?

How can be solved for x in one step?

Kala bought two types of cheese at a deli. She bought 0.50 pound of American cheese and 1.25 pounds of Swiss cheese. The bar diagram and equation below represent Kala’s purchase, where p represents the total number of pounds of cheese she bought. What is the total number of pounds of cheese Kala bought?

Jalisa earned $71.25 today babysitting, which is $22.50 more than she earned babysitting yesterday. The equation can be used to represent this situation, where d is the amount Jalisa earned babysitting yesterday. Which is an equivalent equation that can be used to find the amount Jalisa earned babysitting yesterday?

Emma buys yards of blue fabric and some yellow fabric at a store. She buys a total of yards of fabric. The equation can be used to represent this situation, where y is the number of yards of yellow fabric she buys. How much yellow fabric does she buy?

Pablo created the bar model and equation after paying a $9.79 lunch bill with a $20 bill. What is the value of c, and what does it represent in this problem?

After the bank cashed a check Maureen wrote for $60, her balance was . The equation can be used to represent this situation, where b is Maureen’s balance, in dollars, before the check was cashed. Maureen attempted to solve the equation using the steps below.What error, if any, did Maureen make?

How can be solved for x in one step?

A leak in a pool causes the height of the water to decrease by 0.25 foot over 2 hours. After the leak is fixed, the height of the water is 4.75 feet. The equation can be used to find x, the original height of the water in a pool. What was the original height of the water in the pool in feet?

Kaitlyn solved the equation for x using the following calculations.What error, if any, did she make?