WHAT IS 643=4X160+N
Step 1. Simplify 4 x 160 to 640643 = 640 + nStep 2. Subtract 640 from both sides 643 - 640 = nStep 3. Simplify 643 - 640 to 33 = nStep 4. Switch sidesn = 3Done! :) So 643 = 4 x 160 + 3