\(14\dfrac{1}{2}-\dfrac{2\left(x+3\right)}{5}=\dfrac{3x}{2}-\dfrac{2\left(x-7\right)}{3}\)
Giải các phương trình sau
1)\(\dfrac{x+1}{85}+\dfrac{x+3}{83}=\dfrac{x+5}{81}+\dfrac{x+7}{79}\)
2)\(\dfrac{x-1}{2015}-\dfrac{x+3}{2011}=\dfrac{x+7}{2007}-\dfrac{x+11}{2003}\)
3)\(\dfrac{x+4}{4}-\dfrac{x-3}{6}=\dfrac{x}{3}\)
4)\(x-\dfrac{x+1}{3}=\dfrac{2x+1}{5}\)
5) \(\dfrac{2x-7}{5}+\dfrac{x+11}{2}=-4\)
giúp em vs ạ, em đang cần gấpem c.ơn trước ạ
a.\(\dfrac{5x+2}{6}-\dfrac{8x-1}{3}=\dfrac{4x+2}{5}-5\)
b.\(x-\dfrac{2x-5}{5}+\dfrac{x+8}{6}=7+\dfrac{x-1}{3}\)
c.\(\dfrac{x+1}{15}+\dfrac{x+2}{7}+\dfrac{x+4}{4}+6=0\)
d.\(\dfrac{x-342}{15}+\dfrac{x-323}{17}+\dfrac{x-300}{19}+\dfrac{x-273}{21}=10\)
e.\(\dfrac{x+97}{125}+\dfrac{x-63}{35}=\dfrac{x-7}{21}+\dfrac{x-77}{49}\)
Giải các phương trình:
\(a,\dfrac{3x-5}{x-2}=\dfrac{3x+1}{x-1}-\dfrac{3}{x-2}\)
b, \(\dfrac{1}{x-1}+\dfrac{2}{x+3}=\dfrac{7}{\left(x-1\right)\left(x+3\right)}\)
\(\dfrac{x+5}{2}\) +\(\dfrac{3-2x}{4}\) =x-\(\dfrac{7+x}{6}\)
\(x-\dfrac{3}{17}(2x-1)=\dfrac{7}{34}(1-2x)+\dfrac{10x-3}{2}\)
Giải phương trình sau :
a,(x+1)(x-5)-x(x-6)=3x+7
b,\(\dfrac{x-2}{x+3}-\dfrac{2x-1}{x}=\dfrac{11-2x^2}{x^2+3x}\)
Giải các phương trình:
\(a,\dfrac{2\left(x+7\right)}{x+1}-\dfrac{x+11}{x^2-1}=4-\dfrac{x-1}{x+1}\)
\(b,\dfrac{x+2}{x-3}+\dfrac{x+2}{x+3}=\dfrac{2\left(x+6\right)}{x^2-9}\)
giải pt \(\dfrac{13}{\left(x-3\right)\left(2x+7\right)}+\dfrac{1}{2x+7}=\dfrac{6}{x^2-9}\)