Розділ 8. Площа » 135

х : 6 = 3157 – 2862 х : 6 = 295 х = 295 • 6 х = 1770________ 1770 : 6 = 295 295 = 295 х – 18 713 = 54 000 : 9 х – 18713 = 6000 х = 6000 + 18713 х = 24713_________ 24713 – 18713 = 6000 6000 = 6000 х : (5 + 4) = 6 х : 9 = 6 х = 6 • 9 х = 54_______ 54 : (5 + 4) = 6 54 : 9 = 6 6 = 6 х + 17048 = 30115 – 12698 х + 17048 = 17417 х = 17417 – 17048 х = 369____________ 369 + 17048 = 17417 17417 = 17417 2000 : х = 63 000 : 63 2000 : х = 1000 х = 2000 : 1000 х = 2__________ 2000 : 2 = 1000 1000 = 1000 х • (18 – 8) = 70 х • 10 = 70 х = 70 : 10 х = 7__________ 7 • (18 – 8) = 70 7 • 10 = 70 70 = 70