10 2/3(9-к)+81=107-1/3(к-60)

Question

10 2/3(9-к)+81=107-1/3(к-60)

Answer 1

10 2/3 * (9 - к) + 81 = 107 - 1/3 * (к - 60)
32/3 * (9 - к)  + 81 = 107 - 1/3 * (к - 60)
96 - 32/3 * к  + 81 = 107 - 1/3 * к + 20
96 + 81 - 107 - 20 =32/3 *к - 1/3 * к
50 = 31/3 к
к = 50 / (31/3)
к = 150/31 = 4 26/31