The duration of a school test is 60 minutes. Ethan completes the test in x minutes with 36 minutes left.

• 36 + x = 60

• x – 36 = 60

• 60 + x = 36

• 36x = 60

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CCSS.HSA.CED.A.3

Charlie has x candies. He shares ten with Betsy and is left with 24 candies.

• 10 + x = 24

• 24 + x = –10

• x + 24 = 10

• x –10 = 24

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CCSS.HSA.CED.A.3

Carol’s class has nine students on roll. x new students join her class and the number of students increases to 16.

• 9 + x = 16

• x – 16 = 9

• 16x = 9

• 16 + x = –9

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CCSS.HSA.CED.A.3

Clara has $67 in her piggy bank. She spends x dollars on a dog bowl which leaves her with $57.4.

• 67 + x = 57.4

• x/67 = 57.4

• 57.4 + x = 67

• x – 57.4 = 67

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CCSS.HSA.CED.A.3

Bob is reading a book from the “Harry Potter” series that has 607 pages. He has read 345 pages of the book and x pages remain.

• x + 345 = 607

• 607 + x = 345

• 345x = 607

• 607 = x – 345

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CCSS.HSA.CED.A.3

The total distance from Sam's house to the stadium is 12 miles. He drives 6.5 miles and takes a break. He has to cover a distance of x miles to reach his destination.

• 6.5x = 12

• 12 + x = 6.5

• x – 12 = 6.5

• 6.5 + x = 12

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CCSS.HSA.CED.A.3

Green Day & Co. sold 37 electric cars last year. Electromania & Co. sold x cars. Both the companies sold a total of 63 electric cars the previous year.

• x + 63 = 37

• x – 63 = 37

• 37 + x = 63

• 37x = 63

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CCSS.HSA.CED.A.3

Daniel buys x saplings. He plants 15 in his backyard in the morning and the remaining 17 saplings in the evening.

• 15x = 17

• x – 15 = 17

• x –15 = –17

• x +15 = –17

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CCSS.HSA.CED.A.3

Patrick receives $12 as tips from two customers whose tables he waited on. One customer gave him $x and the other gave him $5.

• 12 + x = 5

• 5x = 12

• x + 5 = 12

• x – 5 = 12

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CCSS.HSA.CED.A.3

Natalie buys organic almonds priced at $77 from the grocery store. How much did she pay the cashier, if she received $23 in change?

• x – 77 = 23

• x + 77 = 23

• 77x = 23

• x/77 = 23

Tags

CCSS.HSA.CED.A.3