\(\frac{1755}{30-x}-\frac{1500}{30}=15\Rightarrow\frac{1755}{30-x}=15+\frac{1500}{30}=65\Rightarrow\left(30-x\right)\cdot65=1755\Rightarrow30-x=\frac{1755}{60}=27\Rightarrow x=30-27=3\)
Giải pt : \(\frac{5x-1}{10}+\frac{2x+3}{6}=\frac{x-8}{15}-\frac{x}{30}\)
\(\frac{x-15}{2014}+\frac{x-20}{2019}=\frac{x-5}{2004}+\frac{x+30}{1969}\)
Giải phương trình
\(\frac{3}{4\left(x-5\right)}+\frac{15}{50-2x^2}=\frac{7}{6x+30}\)
Tìm x
\(x-\frac{3\left(x+30\right)}{15}-24\frac{1}{2}=\frac{7x}{10}-\frac{2\left(10x+2\right)}{5}\)
\(2x-\frac{4-3x}{\frac{5}{15}}=7x-\frac{x-3}{\frac{2}{5}}-x+1\)
\(\frac{5x-1}{10}+\frac{2x+3}{6}=\frac{x-8}{15}-\frac{x}{30}\)
giai ho minh 2 bai nay nha
nhanh mik tk
cho x>30 tmf nghiệm nguyên dương của pt
\(\frac{1}{x}\)+\(\frac{1}{y}\)=\(\frac{1}{15}\)
Giải các phương trình
a) \(\frac{2x}{x-1}+\frac{4}{x^2+2x-3}=\frac{2x-5}{x+3}\)
b)\(\frac{x^2-x}{x+3}-\frac{x^2}{x-3}=\frac{7x^2-3x}{9-x^2}\)
c)\(\frac{3}{4x-20}+\frac{15}{50-2x^2}+\frac{7}{6x+30}\)
Giải phương trình
\(\frac{30}{x+10}\)+ \(\frac{30}{x-6}\)= \(\frac{60}{x}\)
\(\frac{3}{4x-20}+\frac{15}{50-2x^2}+\frac{7}{6x+30}=0\)
giai pt
