The Book of Mormon doesn't in any way replace the Bible, but is another witness that Jesus is the Christ. Just like when we received the New Testament, the Old Testament didn't lose it's truth or its validity. It strengthened the gospel of Jesus Christ. This is what the Book of Mormon does, it supports the Bible and doesn't take anything away, it strengthens it.
Hindi pinapalitan ng Aklat ni Mormon ang Biblia sa anumang paraan, sa halip isa pa itong saksi na si Jesus ang Cristo. Tulad noong tinanggap natin ang Bagong Tipan, hindi nawala ang katotohanan o ang pagiging balido ng Lumang Tipan. Pinatibay nito ang ebanghelyo ni Jesucristo. Ito ang ginagawa ng Aklat ni Mormon, sinusuportahan nito ang Biblia at hindi binabawasan ang katotohanan nito, pinapatibay nito ang Biblia.