\(a,\left|x-\frac{2}{5}\right|=0,5-\left(-\frac{1}{2}\right)\)

\(b,\frac{3}{2}\left|\frac{1}{4}-x\right|=\frac{5}{6}-1\)

\(c,\frac{4}{3}-\frac{5}{3}\left|x-\frac{1}{3}\right|=-\frac{1}{6}\div\frac{2}{3}\)

Bài 1:

\(E=\frac{\left(13\frac{1}{4}-2\frac{5}{27}-10\frac{5}{6}\right)\cdot230\frac{1}{25}+46\frac{3}{4}}{\left(1\frac{3}{7}+\frac{10}{3}\right)\div\left(12\frac{1}{3}-14\frac{2}{7}\right)}\)

Bài 2:

\(G=\frac{4,5\div\left[47,375-\left(26\frac{1}{3}-18\cdot0,75\right)\cdot2,4\div0,88\right]}{17,81\div1,37-23\frac{2}{3}\div1\frac{5}{6}}\)

Tính : a) \(\frac{1}{9}\div\frac{8}{27}\times-3\div\frac{81}{128}\)

          b) \(\frac{\left(13\frac{1}{4}-2\frac{5}{27}-10\frac{5}{6}\right)\times230\frac{1}{25}+46\frac{3}{4}}{\left(1\frac{3}{7}+\frac{10}{3}\right)\div\left(12\frac{1}{3}-14\frac{2}{7}\right)}\)

Mong mọi người giúp em với :

  a) \(\frac{1}{3}x+13\frac{1}{4}=16\frac{1}{4}\).

b)\(5^x+5^{x+2}=650\).

c)\(\left(1-\frac{1}{5}\right)\times\left(\frac{-3}{10}\right)+\frac{1}{5}\)

d)\(\left(2\frac{1}{3}+3\frac{1}{2}\right)\div\left(-4\frac{1}{6}\times0,2\right)\)(quy đồng đầy đủ nhé)

tìm x 

a)  \(\frac{3}{4}+\frac{1}{4}.x=\frac{1}{2}+\frac{1}{2}.x\)

b) \(\frac{1}{3}.x-\frac{2}{5}.\left(x+1\right)=0\)

c)\(\left(\frac{1}{4}.x-1,5\right)+\left(\frac{5}{6}.x-3\right)-\left(\frac{5}{8}.x-0,5\right)=-4,5\)

tìm x biết

\(a,2\frac{1}{3}+\left(x-\frac{3}{2}\right)=\left(3-\frac{3}{2}\right).x\)

\(b,\frac{3}{2}:\left(x-1\frac{2}{3}\right)-5\frac{2}{3}=2\frac{5}{3}\)

\(c,\left(\frac{7}{2}-2x\right):3\frac{2}{5}+1\frac{4}{5}=7\frac{6}{5}\)