решить уравнение: 2/3(1/3х-1/2)=4х+2 1/2

2/3(1/3х-1/2)=4х+5/6
2/9х-2/6=4х+5/6
2/9х-4х=5/6+2/6
-3 7/9х=7/6
34/9х=7/6
х=7/6 / 34/9
х=7/6*9/34=21/68