Question

x / 3,75 + x / 2,5 = 3,8

Answer 1

\(\frac{x}{3,75}+\frac{x}{2,5}=3,8\)

\(x.\left(\frac{1}{3,75}+\frac{1}{2,5}\right)=3,8\)

\(x.\frac{2}{3}=3,8\)

\(x=3,8.\frac{3}{2}=5,7\)

Answer 2

\(x:3,75+x:2,5=3,8\)

\(x\times\frac{4}{15}+x\times\frac{2}{5}=3,8\)

\(x\times\left(\frac{4}{15}+\frac{2}{5}\right)=3,8\)

\(x\times\frac{2}{3}=3,8\)

         \(x=3,8:\frac{2}{3}\)

         \(x=5,7\)

Answer 3

x là 5,7