Question

then find A' by adjoint method.
The sum of three aumbers ia 9. If we multiply third number by 3 and add to the second number, wer 16. B
adding the first and the third number and then subtracting twice the second number from this weet
Use this information and find the system of linear equations. Hence, find the three numbers using matrices.​

Answer 1

Answer: 3,1 and 5

Explanation:

Let the three numbers be x,y and z. Then, according to the question,

Let the three numbers be x,y and z. Then, according to the question,x+y+z=9 ... (i)

Let the three numbers be x,y and z. Then, according to the question,x+y+z=9 ... (i)y+3z=16 .... (ii)

Let the three numbers be x,y and z. Then, according to the question,x+y+z=9 ... (i)y+3z=16 .... (ii)x−2y+z=6 .... (iii)