Posted by **Speedo** on Thursday, September 19, 2013 at 7:41pm.

Find the ordered quintuplet (a,b,c,d,e) that satisfies the system of equations a+2b+3c+4d+5e=177,

2a+3b+4c+5d+e=154,

3a+4b+5c+d+2e=146,

4a+5b+c+2d+3e=138,

5a+b+2c+3d+4e=165

This a really hard questioon but don't give up, please.

- math -
**Steve**, Thursday, September 19, 2013 at 8:06pm
(a,b,c,d,e) = (8,5,12,12,15)

Not hard at all. Mosey on over to

http://www.gregthatcher.com/Mathematics/GaussJordan.aspx

to see how it falls out using Gaussian elimination.

- math -
**Anonymous**, Sunday, June 14, 2015 at 10:07pm
(8,5,12,12,15)

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