15 3/8:(2 3/4х + 5 5/8) - 1 1/2 = 3/4. Решить уравнение.
15 3/8:(2 3/4х+5 5/8)-1 1/2=3/4 15 3/8:(2 3/4х+5 5/8)=3/4+1 1/2 15 3/8:(2 3/4х+5 5/8)=3/4+1 1/4 123/8:(2 3/4х+5 5/8)=1 4/4 2 3/4х+5 5/8=123/8:2 2 3/4х=123/16-5 5/8 2 3/4х=123/16-45/8 11/4х=123/16-90/16 11/4х=33/16 х=33/16:11/4 х=3/4