решите уравнение 2/3 (1/3x - 0,5) = 4x + 2,5

2/3(1/3х-0,5)=4х+2,5
2/9х-2/3*1/2=4х+2 1/2
-1/3-2 1/2=4х-2/9х
-1/3-5/2=3 9/9х-2/9х
-2/6-15/6=3 7/9х
-17/6=34/9х
х=-17/6:34/9
х=-3/4