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02-04-2015
Mathematics

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X +Y+Z=8
6X+Y+5Z=41
WHAT IS X & Y & Z ?

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crisforp crisforp

02-04-2015

6x + y +5z = 41
- x - y - z = - 8
_____________(+)
5x + 4z = 33 ;
One solution is x = 5 and z = 2 ;
y = 8 - 5 - 2 = 1 ;

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