Tim x, biet:
\(\frac{x+1}{49}+\frac{x+2}{48}+\frac{x+3}{47}+\frac{x+4}{46}+\frac{x+5}{45}=-5\)
Tìm x, biết: \(\frac{x+5}{95}+\frac{x+6}{94}+\frac{x+7}{93}+\frac{x+8}{92}+\frac{x+9}{91}=-5\)
BÀI 1:TÌM X
a)\(\frac{X}{108}=\frac{-7}{9}\times\frac{5}{6}\)
b)\(\frac{x+5}{95}+\frac{x+6}{94}+\frac{x+7}{93}+\frac{x+8}{92}+\frac{x+9}{91}=-5\)
Tìm x , biết :
\(\frac{x+1}{99}+\frac{x+3}{97}+\frac{x+5}{95}=\frac{x+2}{98}+\frac{x+4}{96}+\frac{x+6}{94}\)
Tim x biet
a) \(\left(x+\frac{1}{4}-\frac{1}{3}\right):\) \(\left(2+\frac{1}{6}-\frac{1}{4}\right)=\frac{7}{46}\)
b) \(2\frac{1}{2}x+x=2\frac{2}{15}\)
Tim x biet
a)\(\frac{8}{23}.\frac{46}{24}-x=\frac{1}{3}\)
b) \(\frac{10}{12}:x=\frac{28}{9}.\frac{3}{56}\)
c) \(\frac{x-12}{4}=\frac{1}{2}\)
Tim x biet
g) \(\frac{x}{15}=\frac{3}{5}+\frac{-2}{3}\)
h) \(\frac{x}{182}=\frac{-6}{14}.\frac{35}{91}\)
Tìm x biết :
\(\frac{x+1}{49}+\frac{x+2}{48}+\frac{x+3}{47}\frac{x+4}{46}+\frac{x+5}{45}=-5\)
Tìm x biết :
a) \(\frac{1}{2013}\times x+1+\frac{1}{2}+\frac{1}{6}+\frac{1}{12}+...+\frac{1}{2012\times2013}=2\)
b)\(2x+\frac{7}{6}+\frac{13}{12}+\frac{21}{20}+\frac{31}{30}+\frac{43}{42}+\frac{57}{56}+\frac{73}{72}+\frac{91}{90}=10\)