\ Model solved using the solver 'CBC'
\ Model for sheet réseau
\ Model has 2 Excel constraints giving 1 constraint rows and 3 variables.
MAXIMIZE
Obj: +2 _E9 +3 _E10 +4 _E11

SUBJECT TO
\ D14 <= C14
 +1 _E9 +2 _E10 +3 _E11 <= +5

BOUNDS

\ (Upper bounds of 1 on the relaxed binary variables)
_E9 <= 1
_E10 <= 1
_E11 <= 1

\'Assume Non Negative' is FALSE, so default lower bounds of zero are removed from all non-binary variables.