\(\dfrac{3547}{28}\times100-\dfrac{25}{7}\times10547\)
= \(\dfrac{354700}{28}-\dfrac{25}{7}\times1057\)
= \(\dfrac{88675}{7}-\dfrac{263675}{7}\)
\(=\dfrac{-175000}{7}\)
= \(-25000\)
\(\dfrac{3547}{28}\times100-\dfrac{25}{7}\times10547\)
= \(\dfrac{354700}{28}-\dfrac{25}{7}\times1057\)
= \(\dfrac{88675}{7}-\dfrac{263675}{7}\)
\(=\dfrac{-175000}{7}\)
= \(-25000\)
tìm x, biết
a)x-100/24+x-98/26+x-96/28=3
b)x-1/65+x-3/63=x-5/61+x-7/59
Tìm số hữu tỉ x, biết:
a, \(\frac{x-100}{24}+\frac{x-98}{26}+\frac{x-96}{28}=3\)3
b, \(\frac{x-1}{65}+\frac{x-3}{63}=\frac{x-5}{61}+\frac{x-7}{59}\)
c, \(\frac{x-28-124}{2011}+\frac{x-124-2011}{28}+\frac{x-2011-28}{124}=3\)
giúp với gấp lắm
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