27:18=12:8!!!!!!!!!!!!!!!!!!!!!!!!!!
1) 6x+2-x < 3x+12
1 7/8:8 1/3=х:4/9
15/8 : 25/3=x : 4/9
25/3 x =15/8 * 4/9
x=5/6 * 3/25
x=1/10