Các câu hỏi tương tự
Tìm x , biết : \(\frac{25-x}{995}+\frac{21-x}{997}+\frac{17-x}{999}=\frac{11-x}{334}\)
tìm x
\(\frac{3}{x+5}=15\%\)
\(\frac{x}{3}-\frac{10}{21}=\frac{-1}{7}\)
x-25%x=\(\frac{1}{2}\)
tìm x biết \(\frac{x}{6}+\frac{x}{10}+\frac{x}{15}+\frac{x}{21}+\frac{x}{28}+\frac{x}{36}+\frac{x}{45}+\frac{x}{55}+\frac{x}{66}+\frac{x}{78}+\frac{x}{78}=\frac{220}{39}\)
tìm x biết
\(\frac{x}{6}\)+ \(\frac{x}{10}+\frac{x}{15}+\frac{x}{21}+\frac{x}{28}+\frac{x}{39}=\frac{8}{9}\)
Tìm x biết
a)2 \(\frac{x}{7}\) =\(\frac{75}{35}\) b)4\(\frac{3}{x}\)=\(\frac{47}{x}\)c)x\(\frac{x}{15}\)=\(\frac{112}{5}\) d)7,5x : ( 9 - 6\(\frac{13}{21}\)) =2\(\frac{13}{25}\)
Tìm x biết \(\frac{2}{5}.x:\frac{7}{3}.\frac{1}{8}=\frac{25}{15}\)
Tìm x biết:
a/\(\frac{7}{9}-\frac{x}{3}=\frac{1}{9}\)
b/\(\frac{1}{x}-\frac{-2}{15}=\frac{7}{15}\)
c/\(\frac{-11}{14}-\frac{-4}{x}=\frac{-3}{14}\)
d/\(\frac{x}{21}-\frac{2}{3}=\frac{5}{21}\)
CÁC BẠN GIÚP MÌNH VỚI, TÍ NỮA MÌNH PHẢI NỘP BÀI RỒI
\(\frac{25}{49}\)x \(\frac{21}{29}\)-\(\frac{25}{49}\)x\(\frac{7}{29}\)+ \(\frac{24}{49}\)x\(\frac{15}{29}\)
Tìm x, biết :
\(\frac{x+3}{97}+\frac{x+5}{95}+\frac{x+4}{96}+\frac{x+1}{99}=-4\)
\(\frac{x-5}{1995}+\frac{x-15}{1985}+\frac{x-25}{1975}=3\)