I understand the concept of Kmaps, Quine method and forming a logic diagram but I'm lost at forming an equation from an addition and subtraction equation(adsbygoogle = window.adsbygoogle || []).push({});

For example: a 2 bit plus a 3 bit binary integer. I would have a 4 bit sum and 3 carries. However, how does one form the appropriate equation in order to convert it to a proper logic circuit?

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# How does one form an equation for adder/subtractor?

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