Question

Tìm x:

\(x : 54 + x: 16 = 217\)

Answer 1

\(x:54+x:16=217\)

\(\Rightarrow\dfrac{x}{54}+\dfrac{x}{16}=217\)

\(\Leftrightarrow\dfrac{35}{432}x=217\)

\(\Rightarrow x=\dfrac{13392}{5}\)

Answer 2

\(x : 54+x:16=217\)

\(x.\dfrac{1}{54}+x.\dfrac{1}{16}=217\\ x.\left(\dfrac{1}{54}+\dfrac{1}{16}\right)=217\\ x.\dfrac{35}{432}=217\\ x=\dfrac{13392}{5}\)

Answer 3

\(x:54+x:16=217\)

\(\Rightarrow x.\dfrac{1}{54}+x.\dfrac{1}{16}=217\)

\(\Rightarrow x.\left(\dfrac{1}{54}+\dfrac{1}{16}\right)=217\)

\(\Rightarrow\dfrac{35}{432}x=217\Rightarrow x=217:\dfrac{35}{432}\)

\(\Rightarrow x=2678,4\)

Vậy \(x=2678,4\)
Chúc bạn học tốt!!!

Answer 4

\(\dfrac{x}{54}+\dfrac{x}{16}=217\)

<=> \(\dfrac{8x}{432}+\dfrac{27x}{432}=\dfrac{93744}{432}\)

=> 8x + 27x = 93744

<=> 35x = 93744

<=> \(\dfrac{35x}{35}=\dfrac{93744}{35}\)

<=> x = 2678,4

Answer 5

\(x:54+x:16=217\)

\(\Leftrightarrow x\cdot\dfrac{1}{54}+x\cdot\dfrac{1}{16}=217\)

\(\Leftrightarrow x\left(\dfrac{1}{54}+\dfrac{1}{16}\right)=217\)

\(\Leftrightarrow x\left(\dfrac{8}{432}+\dfrac{27}{432}\right)=217\)

\(\Leftrightarrow x\cdot\dfrac{35}{432}=217\)

\(\Rightarrow x=217:\dfrac{35}{432}\)

\(\Leftrightarrow x=217\cdot\dfrac{432}{35}\)

\(\Rightarrow x=2678.4\)

Vậy \(x=2678.4\).