Lando111
Lando111
15-05-2017
Mathematics
contestada
solve using elimination method
Respuesta :
mreijepatmat
mreijepatmat
15-05-2017
x+y=8
2x²-y=-5 add them up so that to eliminate y
--------------
2x²+x+oy=3 ===> 2x²+x=3
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