4 1/15-1 14/15х=1 1/6
1 14/15х= 4 1/15 - 1 1/6
29/15х= 61/15-7/6
29/15х= 87/30
х= 87/30/ 29/15
х=3/2
б) 4 4/9/ (2/3х+14)=5/27
2/3х+14= 40/9 / 5/27
2/3х+14= 24
2/3х=24-14
2/3х=10
х=10*3/2
х=15