Question

The sum of three number is 6 .Thrice the third number when added to the first number gives. 7 on adding three times. first number to the sum of second and third number we get 12. find the three number by using matrices.​

Answer 1

Answer:

First number =x

Second number =y

Third number is z

The sum of three numbers be 6

x+y+z=6____(i)

Thrice the third number when added to first number that is seven.

2z+x=7____(ii)

On adding of sum of second and third number To thrice of first number we get 12

y+z+3x=12____(iii)

By equation 1 and 3 we get

2x=6

x=3

By equation 2 we get ,

2z+3=7

2z=4

z=2 .

=3+y+2=6

y=6-5

y=1.

The numbers are 1,2,3.

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Answer 2

Answer:

the numbers are 1 ,2 , 3

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