Course 2 Math Sentences

Permission is granted to instructors to copy and distribute this worksheet for instructional purposes only. Copyright © 2002 PLATO Learning, Inc. All rights reserved. Printed in the United States of America. ® PLATO is a registered trademark of PLATO Learning, Inc. Algebra 1, Part 1, Document ma2mh.

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Module: Linear Equations in 1 Variable: Solving by Inspection

Objective: To practice solving basic linear equations that have one variable, using inspection

Name: _______________________ Date: __________________

Fill in the blank with one of the words in parentheses.

Any number that replaces a variable and makes the equation true is a

_______________ of the equation. (set, solution)

We solve an equation by finding all of the solutions that make the equation

_______________. (false, true)

The inspection method requires these steps:

1. Covering the variable with a box that holds a place for the

_______________. (equation, variable)

2. Asking yourself the question: What number makes the equation

_______________? (false, true)

Checking your work by substituting your _______________ back into the

original equation. (solution, variable)

Problem Set: Solve the equation.

1. 3 + x = 14 ______________ 2. 3w = 15 ______________

3. -4 + y = 7 ______________ 4.

31 z = 4

______________

Course 2 Math Sentences

Permission is granted to instructors to copy and distribute this worksheet for instructional purposes only. Copyright © 2002 PLATO Learning, Inc. All rights reserved. Printed in the United States of America. ® PLATO is a registered trademark of PLATO Learning, Inc. Algebra 1, Part 1, Document ma2mh.

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5. w – 5 = 6 ______________ 6. -3a = 9 ______________

7. 21 y = 3

______________ 8. y – 9 = 7 ______________

9. -5s = 25 ______________ 10. -5b = 15 ______________ Part 1: To solve for the term:

1) Cover the term. 2) What number makes the equation true?

Part 2: To find the variable: 1) Cover the variable. 2) Ask what number makes the equation true.

Remember to check your answer.

11. -5 – 11b = 6 ______________ 12. 7 –

31 b = 10

______________

13. 3y + 2 = 5 ______________ 14. 4n – 12 = 0 ______________

15. 5 + 21 z = 8

______________ 16. -4s – 15 = 5 ______________ Reflection: Make a set of three problems like those above for a partner to solve. Be sure you have solved them first! ________________________________________________________________

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