Question

tim x biet:\(\frac{1+2y}{8}=\frac{1+4y}{24}=\frac{1+6y}{6x}\)

nho trinh bay cach giai nhe cac ban

Answer 1

\(\frac{1+2y}{8}=\frac{1+4y}{24}=\frac{1+6y}{6x}=\frac{2\left(1+2y\right)-\left(1+4y\right)}{2.8-24}=\frac{1}{-8}\)

=> \(\frac{1+2y}{8}=\frac{1}{-8}\) => 1+2y = -1 => y = -1

   \(\frac{1+6y}{6x}=\frac{1}{-8}\) => \(\frac{1+6.\left(-1\right)}{6x}=\frac{1}{-8}\)

=> \(\frac{-5}{6x}=\frac{1}{-8}\) => x = (-5).(-8)/6 = 20/3