[Flieger]

Originally Posted by PorscheGAL

Thanks for all the help. Please excuse any dumb questions, it is still a little above me.

In the explanation I put up, the first line reads:

If a*b=a-3b, 4*3=4-3(3)=-5

Where does the -5 come from?

Please Excuse My Dear Aunt Sally.
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Parentheses, Exponents, Multiplication and Division, Addition and Subtraction.