Page 112 - PM Integrated Workbook 2018-19
P. 112
Chapter 4
3.6 Solving the problem using simultaneous equations
You may consider that the whole process would be easier by solving the constraints
as sets of simultaneous equations and not bothering with reading a graph.
This is possible and you may get the right answer, but such a technique should be
used with caution and is not recommended until you have determined graphically
which constraints are effective in determining the optimal solution.
The technique can, however, be used as a check, or to establish the exact quantities
for the optimal solution when the graph does not give sufficient accuracy.
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