Автор - Novoseltcevas

1] X-?
5/13отx=65
2] x=7/9 от 63

3] 3/7 от x=6/11 от44
Срочно нужен плз61бал

Ответ

Автор - Nullpo201

1) frac{5}{3} x = 65 \ x = 65 div  frac{5}{3}  \ x =  frac{65 times 3}{5}  \ x = 13 times 3 = 39

 frac{7}{9} x = 63 \ x = 63 div  frac{7}{9}  \ x =  frac{63 times 9}{7}  \ x = 9 times 9 = 81

 frac{3}{7} x =  frac{6}{11}  times 44 \  frac{3}{7} x = 6 times 4 \  frac{3}{7} x = 24 \ x = 24 div  frac{3}{7}  \ x =  frac{24 times 7}{3}  \ x = 8 times 7  = 56

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