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# Big Ideas Math Common Core 7th Grade Chapter 3: Expressions and Equations Chapter Exam

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

### Page 1

#### Question 1 1. Solve x + 10 = 19

#### Question 2 2. Solve 6x + 3 = -3

#### Question 3 3. Solve 9x - 9 = 9

#### Question 4 4. Solve -5x = -10

#### Question 5 5. Jill and Brian divided up $1900 between two investment accounts. Jill's account earns 4% interest and Brian's earns 3%. If their combined interest earns them $70, then how much was originally invested in each account?

### Page 2

#### Question 6 6. If a guitar costs 25% more than a $900 drum kit, then how much is the guitar?

#### Question 7 7. Scott paddles a canoe upstream against the current in 4 hours, then returns downstream with the current in 1 hour. If the river flows at 3 miles per hour, then what would Scott's paddling speed be in calm water?

#### Question 8 8. Ten less than half a number is 76. What is the number?

####
Question 9
9.
An algebra class normally has *y* students, but today it is just 2/3 full. Express the number of students in class today in terms of *y*.

#### Question 10 10. Keara is 5 years older than Michelle. If Michelle is m years old, write an expression for Keara's age.

### Page 3

#### Question 11 11. Donald is the CEO of a company and earns three times as much as the combined salary of his two vice presidents, Susan and Kurt. If Susan earns s and Kurt earns k, then how much does Donald earn in terms of s and k?

#### Question 12 12. In a football game, Peyton threw 17 more complete passes than Tom, who threw p. Express the number of complete passes Peyton had in terms of p.

#### Question 13 13. Simplify the expression: 2a(4b + 3a) + 2ab.

#### Question 14 14. Simplify the expression: 3x(x + 5y) + 2y(7x - y) + 4(x^2 + 2y).

#### Question 15 15. Simplify the expression: [2x 3 y2]3.

### Page 4

#### Question 16 16. Simplify the expression: 2st + 3t - s + 5t + 4s.

####
Question 17
17.
Solve.

x - 3 = 0

####
Question 18
18.
Solve.

x + 7 = 20

####
Question 19
19.
Solve.

x - 10 = 90

####
Question 20
20.
Solve.

x + 45 = 50

### Page 5

#### Question 21 21. Solve for x: 8x - 7 = 5x + 8

#### Question 22 22. Solve for x: x - 10 = 3

#### Question 23 23. Solve for x: 4(x - 3) = -4

#### Question 24 24. Solve for x: 2x = -18

####
Question 25
25.
Solve.

x/6 = 3

### Page 6

#### Question 26 26. What does the multiplication principle tell you?

####
Question 27
27.
Solve.

7x = 21

####
Question 28
28.
Solve.

3x = 9

#### Question 29 29. What's the first step to solving the equation 5x + 6x - 22 = 0?

#### Question 30 30. A store is offering 15% off the price of sunglasses if you buy two. If you buy two and the total cost (including the discount) is $30.60, what is the original price for one?

#### Big Ideas Math Common Core 7th Grade Chapter 3: Expressions and Equations Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!