3 3/4x=2 11/12+1 2/3
3 3/4 x=4 7/12
x=4 7/12 / 3 3/4
x=1 2/9
3 1/9x= 4 2/15-1 4/5
3 1/9 x=2 1/3
x=2 1/3 / 3 1/9
x=3/4
5/16x=6 1/8-2 3/4
5/16x=27/8
x=27/8 / 5/16
x=54/5=10 4/5