Consider it as a number line problem. Remember them? :D OK... so we're starting at a point located to the right of zero (0) by 4.63 units, and we are going to move 10 units to the left (in a negative (-) direction). When we have moved just to the zero point, how many units have we moved?

Obviously, we have moved 4.63 units, out of the total of 10 units in the planned move. So how many units are left to move if we are to complete the whole movement? 10.00 - 4.63 = 5.37 units. With me so far?? OK -- so now we will move that distance, again to the left. Where do we now end up?

Yep -- at -5.37! Simple, right?? :+