Answer:
Texas became an Independent nation after it won its Independence from Mexico in 1836. Texas was deeply in debt as a nation. Sam Houston who had been encouraged by Andrew Jackson to go to Texas wanted Texas to join the United States.
Texas became a part of the Union through a formal treaty entitled The Treaty of 1845. In the treaty Texas maintained control of its public lands. Texas keeps all royalties from minerals on public / federal land.
Step-by-step explanation: