+Tim x : 

a ) \(\left(x-\frac{1}{2}\right)^3=\frac{1}{27}\)  

b )\(\left(x+\frac{1}{2}\right)^2=\frac{4}{25}\)

c ) \(\left(x+1\right)^{x+2}=\left(x-1\right)^{x+6}\) (x ϵ Z )

d ) \(\left(2x+3\right)^{2016}=\left(2x+3\right)^{2018}\)

e ) \(\frac{3}{x+2.x+5}+\frac{5}{x+5.x+10}+\frac{7}{x+10.x+17}=\frac{x}{x+2.x+17}\) Với  \(x\notin\left\{-2;-5;-10;-17\right\}\)

tim x 

\(\frac{2}{3}x-\frac{1}{2}=\frac{1}{10}\)

\(\left(x.\frac{6}{7}+\frac{3}{7}\right).2\frac{1}{5}-\frac{3}{7}=-2\)

\(-5.\left(x+\frac{1}{5}\right)-\frac{1}{2}.\left(x-\frac{2}{3}\right)=\frac{3}{2}.x-\frac{5}{6}\)

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

giúp mk nha , mk đang cần gấp

tim x:

cau 1:\(\frac{x+1}{199}\)+\(\frac{x+2}{198}\)+\(\frac{x+3}{197}\)+\(\frac{x+4}{196}\)+\(\frac{x+5}{195}\)=(-5)

cau 2:\(\frac{1}{21}\)+\(\frac{1}{28}\)+\(\frac{1}{36}\)+....+\(\frac{2}{x\left(x+1\right)}\)=\(\frac{2}{9}\)

tim các số nguyên x,y,z biết:

a,\(\frac{-3}{6}=\frac{x}{-10}=\frac{-7}{y}=\frac{z}{18}\)

b,\(\frac{x+5}{x-2}=\frac{2}{3}\)

tìm số nguyên x biết : 

a,\(\frac{x}{5}=\frac{x+6}{15}\)

b,\(\frac{x+10}{27}=\frac{x}{9}\)

c,\(\frac{x+16}{35}=\frac{x}{7}\)

Các bạn ơi gúp mk với mình chưa làm  dạng này các bạn giúp mk nha^-^

bài 2 tìm x

a,\(\frac{-2}{3}.x+\frac{1}{5}=\frac{3}{10}\)

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

c,\(\frac{2}{3}.x-\frac{1}{2}=\frac{1}{10}\)

d,\(\frac{3}{5}+\frac{4}{9}:x=\frac{2}{3}\)

e,\(\left|x+75\%\right|=2\frac{1}{5}\)

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

k,\(\frac{4}{7}.x-\frac{2}{3}=\frac{1}{5}\)

l,\(\frac{2}{3}.x-\frac{3}{2}.x=\frac{5}{12}\)

m,\(\left|2.x-\frac{1}{3}\right|+\frac{5}{6}=1\)

n,\(\frac{1}{3}-\frac{7}{8}.x=\frac{1}{3}\)

11,\(\frac{x+2}{5}=\frac{7}{12}-1\frac{1}{4}\)

12,\(\left(2\frac{4}{5}.x-50\right):\frac{2}{3}=51\)

13,\(\frac{2}{5}+\frac{3}{5}.\left(3.x-3,7\right)=-\frac{53}{10}\)

14,\(\frac{7}{9}:\left(2+\frac{3}{4}.x\right)+\frac{5}{9}=\frac{23}{27}\)

\(\frac{3}{\left(x+2\right).\left(x+5\right)}\)+\(\frac{5}{\left(x+5\right).\left(x+10\right)}\)+\(\frac{7}{\left(x+10\right).\left(x+5\right)}\)=\(\frac{x}{\left(x+2\right).\left(x+17\right)}\)

\(\frac{x-1}{2009}\)+ \(\frac{x-2}{2008}\)=\(\frac{x-3}{2007}\)  + \(\frac{x-4}{2006}\)