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Solve the system of linear equations.(Enter your answers as a comma-separated list. If there is no solution, enter NO SOLUTION. If the system has an infinite number of solutions, set X3 = t and solve for x1 and X2 in terms of t.)

4x1 - 3X2 + 5X3 = 2
X1 + x2 - 2x3 = 3
3x1 - 4x2 + 7X3 = 9

(X1,X2,X3)=

2 Answers

6 votes

Final answer:

We attempted to solve the given system of linear equations using the elimination method, but we found inconsistent equations which indicate that the system has no solution.

Step-by-step explanation:

We are asked to solve the system of linear equations given by:

  • 4x1 - 3X2 + 5X3 = 2
  • X1 + x2 - 2x3 = 3
  • 3x1 - 4x2 + 7X3 = 9

This system can be solved using methods such as substitution, elimination, or matrix operations. However, since we're not given any further specific method, we'll use the elimination method here which may involve many algebraic steps and careful checking and rechecking.
Multiply the second equation by 4 and subtract it from the first to eliminate x1:

(4x1 + 4x2 - 8x3) - (4x1 - 3X2 + 5X3) = 4*3 - 2
Rearrange the equation to solve for X2:

7X2 - 13X3 = 10
Multiply the second equation by 3 and subtract it from the third to eliminate x1:

(3x1 + 3x2 - 6x3) - (3x1 - 4x2 + 7X3) = 3*3 - 9

Solve for X2 in the resulting equation:

7x2 - 13X3 = 0

Next, we would continue to manipulate these equations to solve for all variables. However, at this point, we can see that the equations for X2 we just derived (7X2 - 13X3 = 10 and 7X2 - 13X3 = 0) are inconsistent with each other. Since there is no value of X2 and X3 that can satisfy both equations at the same time, the system has no solution.

User Goshika Mahesh
by
4.9k points
2 votes

Answer:

No solution!

Step-by-step explanation:

Kindly see the attached file for processed solution

Solve the system of linear equations.(Enter your answers as a comma-separated list-example-1
User Vinothkr
by
4.5k points