Giai PTr :
\(\dfrac{x}{40}+\dfrac{x}{30}=\dfrac{3}{4}\)
giai PT
\(\dfrac{x}{60}+ \dfrac{x}{45}+1,5=\dfrac{32}{5}\)
Giai PT
\(\dfrac{x-1}{x+1}-\dfrac{1}{x}=\dfrac{-1}{x\left(x+1\right)}\)
Giai pt
\(\dfrac{2x}{x-1}-\dfrac{x}{x+1}=1\)
\(\dfrac{1}{x^2-5x+6}+\dfrac{1}{x^2-7x+12}+\dfrac{1}{x^2-9x+12}+\dfrac{1}{x^2-11x+30}=\dfrac{1}{8}\)giải pt
Giúp tui với
Giải pt sau
\(\dfrac{1}{\text{x}^2+5x+6}\)+\(\dfrac{1}{\text{x}^2+7x+12}\)+\(\dfrac{1}{x^2+9x +12}\)+\(\dfrac{1}{\text{x}^2+9x+30}=\dfrac{1}{8}\)
giải phương trình sau:
\(\dfrac{x+25}{75}+\dfrac{x+30}{70}=\dfrac{x+35}{65}+\dfrac{x+40}{60}\)
Giải phương trình
\(\dfrac{x}{30}\)=\(\dfrac{x}{40}\)+\(\dfrac{3}{4}\)
\(\dfrac{x+1}{59}+\dfrac{x+3}{57}+\dfrac{x+5}{55}=\dfrac{x+7}{53}+\dfrac{x+9}{51}+\dfrac{x+11}{49}\) giải pt