0,6 ( х + 1 2\3 )= -68
0.6x+1=-68 0.6x=-68-1 0.6x=-69 x=-115
0,6(х+1*2/3)=-68 6(х+1*2/3)=-680 х+1*2/3=-113*2/6 х=-680/6:5/3 х=-680/6*3/5 х=136/2 х=68