Question

olve the following system of linear equations in three variables
x+y+z=5,2x_y+z=9,x_2y+3x​

Answer 1

Answer:27

Step-by-step explanation:

x + y + z = 5 ; 2x − y + z = 9 ; x − 2y + 3z = 16

Solution

(ii) (1/x) - (2/y) + 4  =  0

(1/y) - (1/z) + 1  =  0

(2/z) + (3/x)  =  14               Solution

(iii)  x + 20 = (3y/2) + 10  =  2z + 5  =  110 - (y + z)

Solution

(2)  Discuss the nature of solutions of the following system of equations

(i) x + 2y −z = 6 ; −3x − 2y + 5z = −12 ; x −2z = 3  

Solution

(ii) 2y +z = 3(−x +1) ; −x + 3y −z = −4 ; 3x + 2y + z  =  -1/2

Solution

(iii)   (y + z)/4  =  (z + x)/3  =  (x + y)/2 ; x + y + z  = 27

Answer 2

Answer:

x

Step-by-step explanation:

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