the first thing we should work on is wands. 21/3=7 so 1 wand = 7. Then we do the brooms, count them there are 4. so 12/4=3 so 1 broom = 3. Next we do the witches, (witch + wand + broom) * 3 = 45 so you divide both sides by 3 to simplify into witch + wand + broom = 15, plug in the known values, witch + 7 + 3 = 15, solve for witch: witch = 5. so finally we have (broom = 3) + (witch = 5) * (2*wand = 14), order of ops says we do multiplication before addition so the final equation is 3+(5*14)=73
