Ms. Moffit mapped her classroom on a coordinate grid. She used the grid to assign seats in the student tables area. Ben's seat is located at (4,-7) on the map. Ms. Moffit moved his seat 3 units left and 2 units up. Where is Ben's seat now?
Ben's seat moved left 3 units, so the x-coordinate of his new seat is 4 - 3 = <<4-3=1>>1.
Ben's seat moved up 2 units, so the y-coordinate of his new seat is -7 + 2 = <<-7+2=-5>>-5.
Thus, Ben's new seat is at (1, -5). Answer: \boxed{(1, -5)}.