C. Solve the following problems by deduction: 1. Use deductive reasoning to show that the following produces always the number 3. Pick a number. Add 5 to it. Subtract 7 from the result. Subtract twice the original number from the previous result.

Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter9: Systems Of Linear Equations
Section9.7: Puzzle Problems
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C. Solve the following problems by deduction:
1. Use deductive reasoning to show that the following produces always the number 3.
Pick a number. Add 5 to it. Subtract 7 from the result. Subtract twice the original
number from the previous result.
Transcribed Image Text:C. Solve the following problems by deduction: 1. Use deductive reasoning to show that the following produces always the number 3. Pick a number. Add 5 to it. Subtract 7 from the result. Subtract twice the original number from the previous result.
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