1 5/6х=1,6*7 1/3 11/6х=1 6/10*22/3 11/6х=16/10*22/3 11/6х=8/5*22/3 11/6х=176/15 х=176/15:11/6 х=176/15*6/11 х=32/5 х=6 2/5