Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
\(3:2:\frac{1}{4}=\frac{3}{4}:6x\)
\(6=\frac{3}{4}:6x\)
\(6x=\frac{3}{4}:6\)
\(6x=\frac{1}{8}\)
\(x=\frac{1}{8}:6\)
\(x=\frac{1}{48}\)
vậy \(x=\frac{1}{48}\)
\(3:2\frac{1}{4}=\frac{3}{4}:\left(6x\right)\)
\(\Leftrightarrow3:\frac{9}{4}=\frac{3}{4}:6x\)
\(\Leftrightarrow\frac{4}{3}=\frac{3}{4}:6x\)
\(\Leftrightarrow\frac{4}{3}x=\frac{3}{4}:6\)
\(\Leftrightarrow\frac{4}{3}x=\frac{1}{8}\)
\(\Leftrightarrow x=\frac{1}{8}:\frac{4}{3}\)
\(\Leftrightarrow x=\frac{3}{32}\)
\(2\left(\frac{1}{4}x-3\right)-\frac{5}{6}\left(6x-\frac{3}{5}\right)=-2\)
\(\frac{1}{2}x-6-5x+\frac{1}{2}=-2\)
\(\frac{1}{2}x-5x-6+\frac{1}{2}=-2\)
\(-\frac{9}{2}x-\frac{11}{2}=-2\)
\(-\frac{9}{2}x=\frac{7}{2}\)
\(x=\frac{7}{2}:\left(-\frac{9}{2}\right)\)
\(x=-\frac{7}{9}\)
\(2.\left(\frac{1}{4}.x-3\right)-\frac{5}{6}.\left(6.x-\frac{3}{5}\right)=-2\)
<=>\(\frac{2}{4}.x-6-\frac{30}{6}.x+\frac{15}{30}=-2\)
<=>\(\frac{1}{2}.x-6-5.x+\frac{1}{2}=-2\)
<=>\(-4,5.x=-2-\frac{1}{2}+6\)
<=>\(-4,5.x=\frac{7}{2}\)
bài này mới làm đúng nhé. bài trên mình tính sai ạ.
<=>\(x=\frac{-7}{9}\)
a) \(3:2\frac{1}{2}=\frac{3}{4}:\left(6x\right)\)
\(3:\frac{5}{2}=\frac{3}{24x}\)
\(\frac{6}{5}=\frac{3}{24x}\)
\(24x=3:\frac{6}{5}\)
\(24x=\frac{5}{2}\)
\(x=\frac{5}{2}:24\)
\(x=\frac{5}{48}\)
b) \(\frac{x}{3}:\frac{2}{3}=1\frac{3}{4}:\frac{2}{5}\)
\(\frac{3x}{6}=\frac{35}{8}\)
\(3x=\frac{35}{8}\cdot6\)
\(3x=\frac{105}{4}\)
\(x=\frac{105}{4}:3\)
\(x=\frac{35}{4}\)
\(3:2\frac{1}{4}=\frac{3}{4}:\left(6x\right)\)
\(3:\frac{9}{4}=\frac{3}{4}.6x\)
\(3.\frac{4}{9}=\frac{9}{2}x\)
\(\frac{4}{3}=\frac{9}{2}x\)
\(x=\frac{4}{3}:\frac{9}{2}=\frac{4}{3}.\frac{2}{9}=\frac{8}{27}\)
\(3:2\dfrac{1}{4}=\dfrac{3}{4}:\left(6x\right)\)
\(\Leftrightarrow\dfrac{3}{4}:\left(6x\right)=3:2\dfrac{1}{4}\)
\(\Rightarrow\dfrac{3}{4}:\left(6x\right)=\dfrac{4}{3}\)
\(\Rightarrow6x=\dfrac{3}{4}:\dfrac{4}{3}=\dfrac{9}{16}\)
\(\Rightarrow x=\dfrac{9}{16}:6=\dfrac{3}{32}\)
Vậy.............
3 : 9/4 = 3/4 : 6x
3. 4/9 = 3/4 : 6 : x
4/3 = 1/8 : x
x = 1/8 : 4/3 = 3/32