THE SMART TRICK OF MINUS TWO CARGO THAT NOBODY IS DISCUSSING

Imagining with regard to our arrows on our amount line, we started out using a −3, getting an arrow of size 3 and pointing for the left, and we subtracted it from the other quantity, thereby reversing the arrow's course to make sure that It is really now an arrow of duration 3 but pointing to the correct.Now look back again at that subtraction Yo