Решите уравнение 3/5 * (7/9 х-1/3) = х-2 1/3

3/5 • (7/9 х - 1/3) = х - 2 1/3

3•7 х / (5•9) - 3•1 / (5•3) = х - 7/3

7 х/15 - 1/5 = х - 7/3

х - 7 х/15 = 7/3 - 1/5

15 х/15 - 7 х/15 = 35/15 - 3/15

8 х/15 = 32/15

х = 32•15 / (8•15) = 32/8 = 4

х = 4