What muscle groups to work

Hi everyone, I'm an average bodied female in my 40's looking for advice. I work out daily, but I need help with what muscle groups to work on, on a daily basis that go together. Last night I did cardio first and then I worked on biceps and back. I really want to concentrated on arms, back, for the stubborn back fat, legs and waistline. I belong to a gym but I need help in coordinating what muscle groups to work on from Monday through Friday. Please HELP.

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