The USS Maine was sent to Cuba in 1898 to bring home US citizens that were in danger from the fighting going on in Cuba between Spain and Cuba.
The question isn't complete and you might want to ask this in the math section.
But just to help you out, 3x means 3 times whatever "x" is.
Your answer should be:
<span>Abraham</span>
Both Abraham Lincoln and Jefferson Davis wanted to avoid a war between the North and the South.