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fin the value of X-Y //fin the value of X-Y //fin the value of X-Y

fin the value of X-Y //fin the value of X-Y //fin the value of X-Y

Question Image
Grade:11

2 Answers

Vikas TU
14149 Points
2 years ago
Dear student 
4+ y =0 
and 
x+ 1 = 5 
So ,y =-4 and x =4 
X -y = 4-(-4) = 8 
Hope this helps 
Good luck 
Cheers 
 
Aditya Gupta
2080 Points
2 years ago
hello tech mirror, as usual vikas has given you the wrong ans, which clearly shows poor quality of his answers. the correct method is as follows:
since the first matrix is multiplied by 2, its elements become 6, 8, 10 and 2x. after adding the second matrix, the final elements become 6+1, 8+y, 10+0, 2x+1, which must be equal to 7, 0, 10, 5 respectively.
so, 8+y= 0 and 2x+1= 5
or y= – 8 and x= 2
so x – y= 10
kindly approve :)

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