\(\dfrac{1}{x}=\dfrac{21}{17}:3\)
\(\dfrac{1}{x}=\dfrac{21}{17}\times\dfrac{1}{3}\)
\(\dfrac{1}{x}=\dfrac{7}{17}\)
\(x=\dfrac{17}{7}\)
Tìm x, biết:
a) \(\dfrac{3}{7}\)x - \(\dfrac{2}{3}\)x = \(\dfrac{10}{21}\)
b) \(\dfrac{7}{35}\) : (x - \(\dfrac{1}{3}\)) = \(-\dfrac{2}{25}\)
c) 3.(x - \(\dfrac{1}{2}\)) - 5. (x + \(\dfrac{3}{5}\)) = -x + \(\dfrac{1}{5}\)
tìm x biết
\(\dfrac{x-2023}{6}\)\(+\dfrac{x-2023}{10}\)\(+\dfrac{x-2023}{15}\)\(+\dfrac{x-2023}{21}\)=\(\dfrac{8}{21}\)
Bài 2
1)Tìm x biết \(\dfrac{x}{-6}\)=\(\dfrac{-10}{3}\)
Tìm x, biết:
a) \(\dfrac{1}{20}\) - (x - \(\dfrac{8}{5}\)) = \(\dfrac{1}{10}\)
b) \(\dfrac{7}{4}\) - (x + \(\dfrac{5}{3}\)) = \(\dfrac{-12}{5}\)
c) x - [\(\dfrac{17}{2}\) - \(\left(\dfrac{-3}{7}+\dfrac{5}{3}\right)\)] = \(\dfrac{-1}{3}\)
Tìm x, biết:
a) \(\dfrac{3}{7}\)x - 0,4 = \(\dfrac{-17}{35}\)
b) 0,2. (x - 3) + 2,4= 10
c) (x : 2,2) . \(\dfrac{1}{6}\) = \(\dfrac{-3}{8}\) . (0,5 - \(1\dfrac{3}{5}\))
\(\dfrac{x-17}{33}\)+\(\dfrac{x-21}{29}_{ }\)+\(\dfrac{x}{25}\)=4
Tìm số hữu tỉ x thỏa mãn: \(\dfrac{x+4}{20}+\dfrac{x+3}{21}=\dfrac{x+2}{22}+\dfrac{x+1}{21}\)
Tìm tập hợp các số nguyên x biết rằng
4\(\dfrac{5}{9}\) : 2\(\dfrac{5}{18}\) - 7 < x < ( 3 \(\dfrac{1}{5}\) : 3,2 + 4,5 \(\times\) 1\(\dfrac{31}{45}\)) : ( -21\(\dfrac{1}{2}\))
\(\dfrac{x-3}{3}=\dfrac{2x+1}{5}\)
\(\dfrac{x+1}{22}=\dfrac{6}{x}\)
\(\dfrac{2x-1}{2}=\dfrac{5}{x}\)
\(\dfrac{2x-1}{21}=\dfrac{3}{2x+1}\)
\(\dfrac{2x+1}{9}=\dfrac{5}{x+1}\)
Tìm x
Tìm x:
a) \(\dfrac{-12}{17}\) < \(\dfrac{x}{17}\) < \(\dfrac{-8}{17}\)
b) \(\dfrac{-1}{2}< x< \dfrac{5}{3}\)
c) 3,456 < x \(\le\) 7,89
d) 5,82 < \(\overline{\text{5,8x0}}\) < 5,845
e) 32, 82 < \(\overline{\text{3x, 850}}\) < 35,845
