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The equations 
x + 2y + 3z = 1 
2x + y + 3z = 2 
5x + 5y + 9z = 4
  • a)
    have the unique solution 
  • b)
    have infinitely many solutions
  • c)
    are inconsistent 
  • d)
    None of the above 
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
The equationsx + 2y + 3z = 12x + y + 3z = 25x + 5y + 9z = 4a)have the ...
We know that the system of equation

has a unique solutiion if 
For; x +2y +3z = 1
and 2x +y +3z =2

For: x+2y +3z =1
and,5x +5y +9z = 4

Given, equation have the unique solution.
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The equationsx + 2y + 3z = 12x + y + 3z = 25x + 5y + 9z = 4a)have the unique solutionb)have infinitely many solutionsc)are inconsistentd)None of the aboveCorrect answer is option 'A'. Can you explain this answer?
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