Math, asked by mallaiahbalusupati, 8 months ago

x+y+z=1,2x+2y+3z=6,x+4y+9z=3,solve the system of equations by using matrix inversion method

Answers

Answered by Anonymous
21

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Answered by amitnrw
17

Given :   x + y + z = 1

2x + 2y + 3z = 6

x + 4y + 9z  = 3

To Find : Value of x , y & z

Solution:

x + y + z = 1     Eq1

2x + 2y + 3z = 6    Eq2

x + 4y + 9z  = 3     Eq3

Eq 2 - 2 * Eq1

=>  z  =  4

=> x  + y  =  - 3

x + 4y + 9(4)  = 3  

=> x + 4y   = -33

=> 3y  = -30

=> y = - 10

=> x = 7

x = 7

y = -10

z = 4

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