\(\dfrac{4}{7}+\dfrac{5}{9}:x=\dfrac{1}{5}\)
\(\dfrac{5}{9}:x=\dfrac{1}{5}-\dfrac{4}{7}\)
\(\dfrac{5}{9}:x=-\dfrac{13}{35}\)
\(x=\dfrac{5}{9}:\left(-\dfrac{13}{35}\right)\)
\(x=-\dfrac{175}{117}\)
tìm x
\(\dfrac{4}{7}+\dfrac{5}{9}:x\dfrac{1}{5}\)
tìm x
\(\dfrac{4}{7}+\dfrac{5}{9}:x=\dfrac{1}{5}\)
tìm x biết
\(\dfrac{4}{7}+\dfrac{5}{9}:x=\dfrac{1}{5}\)
\(\left(\dfrac{2}{3}+\dfrac{2}{13}+\dfrac{2}{11}+\dfrac{2}{6}\right)\) \(\left(\dfrac{5}{4}+\dfrac{5}{7}+\dfrac{5}{6}+\dfrac{5}{11}\right)\)
___________________ X ___________________
\(\left(\dfrac{4}{3}+\dfrac{4}{13}+\dfrac{4}{11}+\dfrac{4}{6}\right)\) \(\left(\dfrac{9}{4}+\dfrac{9}{7}+\dfrac{9}{6}\dfrac{9}{11}\right)\)
2. tìm x
a. \(\dfrac{x}{8}\)=\(\dfrac{-9}{6}\)
b. \(\dfrac{4}{9}\)+\(\dfrac{7}{3}\):x=\(\dfrac{1}{5}\)
c. \(\dfrac{-5}{9}\)- x=\(\dfrac{4}{3}\)
d. x +\(\dfrac{4}{17}\)=\(\dfrac{2}{34}\)
e. \(\dfrac{3}{4}\).x=\(\dfrac{7}{8}\)
f. \(5\dfrac{4}{7}\): x=11
x : \(\dfrac{2}{3}\) = 150 \(\dfrac{35}{9}\) : x = \(\dfrac{35}{6}\)
\(\dfrac{49}{7}\) : x =\(\dfrac{49}{5}\)
1 - { 5\(\dfrac{4}{9}\) + x - 7\(\dfrac{7}{18}\) }: 15\(\dfrac{3}{4}\) = 0
Tìm \(x\)
1. \(\dfrac{1}{7}=\dfrac{8}{-x}\)
2. \(\dfrac{3x}{9}=\dfrac{2}{6}\)
3. \(4\dfrac{2}{5}:\left(\dfrac{-33}{10}\right)+x=-1\dfrac{5}{6}\)
4. \(45\%.x-2\dfrac{3}{8}=-1\dfrac{31}{40}\)
5. \(\left(x-2\dfrac{1}{4}\right):\left(-\dfrac{5}{6}\right)=3\)
1. tìm x
a. x+\(\dfrac{3}{4}\)=\(\dfrac{1}{2}\)
b. \(\dfrac{5}{3}\). x=\(\dfrac{4}{7}\)
c. \(\dfrac{2}{3}\): x=\(\dfrac{-1}{4}\)
d. \(\dfrac{5}{9}\)- x=\(\dfrac{4}{3}\)
e.x +\(\dfrac{4}{17}\)=\(\dfrac{2}{34}\)
f. \(3\dfrac{4}{7}\): x=11
Tính nhanh :
\(C=\dfrac{1}{3}+\dfrac{-3}{4}+\dfrac{3}{5}+\dfrac{1}{57}+\dfrac{-1}{36}+\dfrac{1}{15}+\dfrac{-2}{9}\)
\(D=\dfrac{1}{2}+\dfrac{-1}{5}+\dfrac{-5}{7}+\dfrac{1}{6}+\dfrac{-3}{35}+\dfrac{1}{3}+\dfrac{1}{41}\)
\(E=\dfrac{-1}{2}+\dfrac{3}{5}+\dfrac{-1}{9}+\dfrac{1}{127}+\dfrac{-7}{18}+\dfrac{4}{35}+\dfrac{2}{7}\)
