Blouse Sizes. A blouse that is size x in Japan is size s(x) in the United States, where s(...

Blouse Sizes. A blouse that is size x in Japan is size s(x) in the United States, where s(x) = x − 3. A blouse that is size x in the United States is size t(x) in Australia, where t(x) = x + 4. (Source: onlineconversion.com) Find a function that will convert blouse sizes in Japan to blouse sizes in Australia.