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.
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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.
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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:
the numbers are 1 ,2 , 3
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