In the same way that is taught in the Book of Mormon:
Mosiah 3:
19 For the natural man is an enemy to God, and has been from the fall of Adam, and will be, forever and ever, unless he yields to the enticings of the Holy Spirit, and putteth off the natural man and becometh a saint through the atonement of Christ the Lord, and becometh as a child, submissive, meek, humble, patient, full of love, willing to submit to all things which the Lord seeth fit to inflict upon him, even as a child doth submit to his father.
Mosiah 16:
3 For they are carnal and devilish, and the devil has power over them; yea, even that old serpent that did beguile our first parents, which was the cause of their fall; which was the cause of all mankind becoming carnal, sensual, devilish, knowing evil from good, subjecting themselves to the devil.
4 Thus all mankind were lost; and behold, they would have been endlessly lost were it not that God redeemed his people from their lost and fallen state.
Alma 42:
6 But behold, it was appointed unto man to die—therefore, as they were cut off from the tree of life they should be cut off from the face of the earth—and man became lost forever, yea, they became fallen man.
7 And now, ye see by this that our first parents were cut off both temporally and spiritually from the presence of the Lord; and thus we see they became subjects to follow after their own will.
D&C 20:
18 And that he created man, male and female, after his own image and in his own likeness, created he them;
19 And gave unto them commandments that they should love and serve him, the only living and true God, and that he should be the only being whom they should worship.
20 But by the transgression of these holy laws man became sensual and devilish, and became fallen man.
21 Wherefore, the Almighty God gave his Only Begotten Son, as it is written in those scriptures which have been given of him.
22 He suffered temptations but gave no heed unto them.
23 He was crucified, died, and rose again the third day;
24 And ascended into heaven, to sit down on the right hand of the Father, to reign with almighty power according to the will of the Father;
25 That as many as would believe and be baptized in his holy name, and endure in faith to the end, should be saved—
26 Not only those who believed after he came in the meridian of time, in the flesh, but all those from the beginning, …
Could you tell us what you DO believe in the same detail you want to tell us what you DON’T believe?
See above. Our doctrines are taught in the Book of Mormon, and in other scriptures we have received, including the Bible. The above scriptures are by no means exhaustive. I am sure later on I will think of other verses that I should have included! But they basically explain the core doctrine. There isn’t a lot that I could add to it off my own head. If you can think of some questions that they do not answer, you can ask them, and I will see if I can answer them.