15 3/8 ÷ (2 3/4x + 5 5/6) - 1 1/2 = 3/4
15 3/8 : ( 2 3/4x + 5 5/6) - 1 1/2 = 3/4 15 3/8 : ( 2 3/4x + 5 5/6 ) = 3/4 + 1 2/4 2 3/4x + 5 5/6 =15 3/8 : 2 1/4 2 3/4x + 5 5/6 = 123/8 : 9/4 2 3/4x = 123/18 - 5 15/18 2 3/4x = 6 15/18 - 5 15/18 2 3/4x = 1 x = 1 : ( 11/4 ) x = 4/11