Solving set of linear equations

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SUMMARY

The discussion focuses on solving a set of linear equations represented by the equations x = 0.5x + 0.3y + 0.2z, y = 0.4x + 0.4y + 0.3z, and z = 0.1x + 0.3y + 0.5z, along with the constraint x + y + z = 1. The correct solutions are x = 21/62, y = 23/62, and z = 18/62. Participants highlighted the importance of accurately representing the system of equations as an augmented matrix, emphasizing that the left-hand side variables must be included in the matrix formulation for proper row reduction.

PREREQUISITES
  • Understanding of linear equations and their representations
  • Familiarity with augmented matrices
  • Knowledge of row reduction techniques
  • Basic algebraic manipulation skills
NEXT STEPS
  • Study the process of converting linear equations to augmented matrices
  • Learn advanced row reduction techniques for solving linear systems
  • Explore the application of Gaussian elimination in linear algebra
  • Investigate the use of software tools like MATLAB or Python's NumPy for solving linear equations
USEFUL FOR

Students in mathematics, educators teaching linear algebra, and anyone looking to improve their skills in solving systems of linear equations.

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Homework Statement


x=.5x + .3y +.2z
y= .4x + .4y + .3z
z= .1x + .3y + .5z

x+y+z=1


Homework Equations



when solved, x= 21/62, y=23/62, z= 18/62

The Attempt at a Solution


I've tried doing row reduction but I keep failing ex:
.5 .3 .2
.4 .4 .3
.1 .3 .5
=
0 -1.2 -2.3
.4 .4 .3
.1 .3 .5 I tried many combos of this and I get lost and have no idea how to really go about it
 
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One may represent a system of linear equations as an http://en.wikipedia.org/wiki/Augmented_matrix#Solution_of_a_linear_system".

You failed to correctly represent the system of equations as a matrix. Notice how for the first equation has x on both sides. In the matrix representing the system, there should be one column for coefficient of x. The x on the left side of the first equation should not be ignored. So, first get the equations in the correct form.
 
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