Question

\(\frac{57-x}{57}\)\(=\)\(\frac{14}{25}\) 

tìm x

Answer 1

Trả lời 

\(\frac{57-x}{57}=\frac{14}{25}\)

\(\Leftrightarrow25\times\left(57-x\right)=57\times14\)

\(\Leftrightarrow1425-25x=798\)

\(\Leftrightarrow25x=627\)

\(\Leftrightarrow x=\frac{627}{25}\)

Vậy \(x=\frac{627}{25}\)

Answer 2

Bài làm:

\(\frac{57-x}{57}=\frac{14}{25}\)

\(1-\frac{x}{57}=\frac{14}{25}\)

\(\frac{x}{57}=\frac{11}{25}\)

\(25x=627\)

\(x=\frac{627}{25}\)

Answer 3

\(\frac{57-x}{57}=\frac{14}{25}\)

\(\Leftrightarrow25\left(57-x\right)=57\cdot14\)

\(\Leftrightarrow1425-25x=798\)

\(\Leftrightarrow25x=627\)

\(\Leftrightarrow x=\frac{627}{25}\)

Answer 4

\(\frac{57-x}{57}=\frac{14}{25}\)

\(\Leftrightarrow(57-x)\times25=57\times14\)

\(\Leftrightarrow1425-25x=798\)

\(\Leftrightarrow25x=1425-798\)

\(\Leftrightarrow25x=627\)

\(\Rightarrow x=\frac{627}{25}\)

Học tốt nhé

Answer 5

62725

Answer 6

X = 11/25

Answer 7

trả lời:

\(\frac{627}{25}\)