-3 1/7 x - 2 5/21 = -4 1/3 - 1 1/21 x
-31/7х-25/21+41/3+11/21х=0 -82/21х+262/21=0 х=262/21/82/21 х=129/41
-3 1/7х-2 5/21=-4 1/3-11/21х -3 1/7х+1 1/21х=-4 1/3+2 5/21 -22/7х+22/21х=-13/3+47/21 -66/21х+22/21х=-91/21+47/21 -44/21х=-44/21 х=-44/21:(-44/21) х=1