(5/16)*х + 2 3/4 = 6 1/8
(5/16)*х = 6 1/8 - 2 3/4
(5/16)*х = 49/8 - 11/4
(5/16)*х = (49-22)/8
(5/16)*х = 27/8
х = (27/8) : (5/16)
х = 27 * (2/5)
х = 54/5 = 10 4/5
ответ: 10 4/5
(5/16)*х + 2 3/4 = 6 1/8
(5/16)*х = 6 1/8 - 2 3/4
(5/16)*х = 49/8 - 11/4
(5/16)*х = (49-22)/8
(5/16)*х = 27/8
х = (27/8) : (5/16)
х = 27 * (2/5)
х = 54/5 = 10 4/5
ответ: 10 4/5