20(d+1,4)=140
[frac{1}{6}](h-[frac{4}{7}])=[frac{2}{3}]
[1frac1{3}{4}]*(g-1,2)=5,5
[1frac{2}{3}]*(5x-[frac{1}{2}])=[frac{7}{9}]
20(d+1,4)=140
[frac{1}{6}](h-[frac{4}{7}])=[frac{2}{3}]
[1frac1{3}{4}]*(g-1,2)=5,5
[1frac{2}{3}]*(5x-[frac{1}{2}])=[frac{7}{9}]
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не забудь подписаться)))