Consistency in Linear Equations: The Relationship Between Coefficients c and d

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SUMMARY

The discussion centers on the conditions for consistency in a system of linear equations involving coefficients c and d. The equations presented are x1 + 3x2 = f and cx1 + dx2 = g. For the system to be consistent for all values of f and g, the coefficients must satisfy a specific relationship, which can be derived by manipulating the equations. Specifically, the relationship is that c must equal 3d to ensure that the second equation does not contradict the first.

PREREQUISITES
  • Understanding of linear equations and systems of equations
  • Knowledge of coefficient relationships in algebra
  • Familiarity with solving equations through substitution and elimination
  • Basic grasp of the concept of consistency in mathematical systems
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  • Study the implications of coefficient relationships in linear algebra
  • Learn about the conditions for consistency in systems of equations
  • Explore methods for solving linear equations, including substitution and elimination
  • Investigate the geometric interpretation of linear equations and their solutions
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Students studying algebra, educators teaching linear equations, and anyone interested in understanding the consistency of mathematical systems.

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Homework Statement


Suppose the system below is consistent for all possible values of f and g. What can you say about the coefficients c and d?


Homework Equations


x1 + 3x2 = f
cx1 + dx2 = g

The Attempt at a Solution


I really just have no idea what this says about c and d.
 
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Try solving the equations. Multiply the first one by c and subtract them and solve for x2. What could go wrong with this procedure?
 

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