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If the sum of matrices [ array l x x y array ], [ array l y y z array ] and [ array l z 0 0 array ] is the matrix [ array c 10 5 5 array ] , then what is the value of y ?

Options

  1. A-5
  2. B0
  3. C5
  4. D10

Correct answer

B. 0

Step-by-step solution

aligned & x+y+z=10 & x+y+0=5 & y+z+0=5 aligned 5+z=10 z=5y+z=5y=5-5=0 .

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