in this problem the system of equations is simplified but I dont know why. If you solve for the system of equations after doing the partials I get x =3 and y=1. My question here is, why is 2x+2y=8 reduced to x+y=8. If you can help me out before the exam, thank you.
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That's because x+y = 8 is incorrect and that your calculation x=3, y=1 is correct
