I have two List1:
{{2, -0.6}, {3, -0.9}, {5, -0.5}, {7, -0.4}}
and List2:
{{2, -0.1}, {3, -2}, {5, -2.5}, {7, -3.4}}
The List1 and List2 have the same first elements in their sublists. Can is it possible to get next List3:
{{2, -0.5}, {3, 1.1}, {5, 2}, {7, 3}}
where the first elements in sublists the same first elements in the List1 and List2, but at the same time, second elements are difference between the seconds elements from the Lists.