Question

x + 1,2 . x = 5/6 

các bạn giúp mik với , cảm ơn các bạn nhìu ạ

Answer 1

\(\left(1+1,2\right)x=\dfrac{5}{6}\\ 2,2x=\dfrac{5}{6}\\ x=\dfrac{5}{6}:2,2\\ x=\dfrac{25}{66}\)

Answer 2

\(x+1,2x=\dfrac{5}{6}\)

\(\Rightarrow x\left(\dfrac{6}{5}+1\right)=\dfrac{5}{6}\)

\(\Rightarrow\dfrac{11}{6}x=\dfrac{5}{6}\)

\(\Rightarrow x=\dfrac{5}{11}\)

Answer 3

\(x+1,2x=\dfrac{5}{6}\)

\(x\left(1,2+1\right)=\dfrac{5}{6}\)

\(2,2x=\dfrac{5}{6}\)

\(x=\dfrac{25}{66}\)

Answer 4

\(x+1,2.x=\dfrac{5}{6}\)

\(x.\left(1,2+1\right)=\dfrac{5}{6}\)

\(x.\dfrac{11}{5}=\dfrac{5}{6}\)

\(x=\dfrac{5}{6}.\dfrac{5}{11}\)

\(\Rightarrow x=\dfrac{25}{66}\)