Xinhua Bookstore imported 2800 literature and art books, 175 less than 7 / 8 of the science and technology books. How many science and technology books did the bookstore import? Use the equation to solve the problem

Xinhua Bookstore imported 2800 literature and art books, 175 less than 7 / 8 of the science and technology books. How many science and technology books did the bookstore import? Use the equation to solve the problem

Design and transport x volumes of science and technology books
7/8x-175=2800
7/8x=2800+175
7/8x=2975
x=3400
A: the bookstore has brought in 3400 science and technology books