30800÷7•×=2200 помогите

30800÷7•×=2200x=2200 : (30800 : 7)x = 2200 : 4400x = 0.5проверка:30800 : 7 * 0.5 = 22004400 * 0.5 = 2200

30800:7*х=22004400*х=2200х=2200:4400х=0,530800:7*0,5=4400*0,5=2200