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Find the value of x and y for the below given simultaneous equations that has no solutions?
a + b + c = 18
2a + 4b + 6c = 12
2a + xc + 4b = y
  • a)
    x ≠ 6 and y ≠ 12
  • b)
    x = 6 and y = 12
  • c)
    x ≠ 6 and y = 12
  • d)
    x = 6 and y ≠ 12
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
Find the value of x and y for the below given simultaneous equations t...
For given system of equations to have no solution, the determinant of the coefficient matrix should be equal to 0

1 × (4x−24) − 1 × (2x−12) + 1(8−8) = 0
2x − 12 = 0
∴ x = 6
Augmented matrix is given by

For given system of equations to have no solution, rank of augmented matrix should be greater than coefficient matrix
∴ y − 12 ≠ 0
∴ y ≠ 12
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Most Upvoted Answer
Find the value of x and y for the below given simultaneous equations t...

Explanation:

Given Equations:
a + b + c = 182
a + 4b + 6c = 122
a + xc + 4b = y

Analysis:
For the given simultaneous equations to have no solutions, the coefficients of the variables in the equations must be such that they lead to contradictory statements.

Identifying the Coefficients:
From the given equations, we can see that the coefficients of a are 1, 1, and 1 respectively.
The coefficients of b are 1, 4, and 4 respectively.
The coefficients of c are 1, 6, and x respectively.

Determining Conditions for No Solution:
For the equations to have no solution, the coefficients of the variables must not be able to be scaled or combined to create a consistent system of equations.

Calculating Values:
By analyzing the coefficients, we find that for x = 6 and y = 12, the equations become:
a + b + c = 182
a + 4b + 6c = 122
a + 6c + 4b = 12

Conclusion:
Since the coefficients lead to a contradictory system of equations, the given simultaneous equations have no solutions when x = 6 and y = 12. Therefore, the correct answer is option 'D', x = 6 and y ≠ 12.
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Find the value of x and y for the below given simultaneous equations that has no solutions?a + b + c = 182a + 4b + 6c = 122a + xc + 4b = ya)x ≠ 6 and y ≠ 12b)x = 6 and y = 12c)x ≠ 6 and y = 12d)x = 6 and y ≠ 12Correct answer is option 'D'. Can you explain this answer?
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