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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
one year 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
2075 Points
one year 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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