dear team,
actually i'm noob in math modelling.
just need help, how can i code inside SMath similar to solver function inside Microsoft Excel.

change the "yellow" items to fulfill the constraint values "purple".

help appreciated.
RMix-Test.sm (18 KiB) downloaded 185 time(s).

Wrote

change the "yellow" items to fulfill the constraint values "purple".

Sorry my friend not clear. If any of the purple change,
you will have to reconsider all the other ones.
No problem but for each and any possible combination
that corresponds to a specific recipe, that you may not
have authority to play with unless you are the Lab_Man.
Suggested simplifications attached.

Jean

RMix-Test.sm (28 KiB) downloaded 170 time(s).

thank J.Giraud for quick reply,

sorry for my unclear statements.
actually I try to get the "LSF" as near to 100 (my target)
by adjusting the "yellow" items and the "SM" "IM" to be within the constraint range.

rgds

edit:
done it by the try and error, but I prefer to do it in mathematical way.