>Yes Jon, Mike is right.
>
>P.e 4*5+5 then the common value is 5. then
>5*(4+1) is how you group the operands . 5*4 for expression 4*5 and 5*1 for 5 expression

Some of this is coming back to me now. It's amazing how much of this stuff slips through the cracks, when you take the... "I'll just use Excel's 'Solver' to find out the answer" approach to problem solving. <g>