Solve the system of linear equations #7

label Mathematics
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schedule 1 Day
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Oct 31st, 2015

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first multiply second row by 1/3 

1   -2    8 

1   4/3   4/3

multiply first row by -1 and add to the second row 

1    -2         8 

0  10/3  -20/3 

multiply second row by 3/10

1  -2    8 

0   1     -2

multipply second row by 2 and add it to the first row 

1  0  4

0 1    -2  

the solution is 

x = 4 

y = -2 

Please let me know if you need any clarification. I'm always happy to answer your questions.
Oct 31st, 2015

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