Question

9 EXTRA CREDIT In the equation SEND + MORE = MONEY each letter represents a different digit (09 The addition is done in the usual way from right to left, first adding D and E to obtain Y (possiblywith a camy-over), then adding N and R, and so on. Sokre thisproblem using lnear programmingwith integer and binaryvariables. (No credit is given for a solutionwithout the approp riate sp readsheet modelin Excel)

Answer 1

E ND oNEy SnCe S, R must avual and E1 or more an

values E, D, an N ae 5,6, and t. Stnce tdlentified and the adlttion ta-omes 10 652