Question

(2,5 - 3x) : 1/4 = 5/3

Giúp mình với tưởng dễ nhưng khó quá

Answer 1

(2,5 - 3x) : 1/4 = 5/3

=> 2,5 - 3x = 5/3 . 1/4

=> 2,5 - 3x = 5/12

=> 3x = 2,5 - 5/12

=> 3x = 25/12

=> x = 25/12 : 3

=> x = 25/36

Answer 2

\(\left(2,5-3x\right):\frac{1}{4}=\frac{5}{3}\)

\(2,5-3x=\frac{5}{3}.\frac{1}{4}\)

\(2,5-3x=\frac{5}{12}\)

\(3x=2,5-\frac{5}{12}=\frac{25}{12}\)

\(x=\frac{25}{12}:3=\frac{25}{36}\)

Answer 3

\(\left(2,5-3x\right)\):\(\frac{1}{4}=\frac{5}{3}\)

\(\left(\frac{25}{10}-3x\right)\)=\(\frac{5}{3}\cdot\frac{1}{4}\)

\(3x=\frac{25}{10}-\frac{5}{12}\)

\(3x=\frac{25}{12}\)

\(x=\frac{25}{12}:3\)

\(x=\frac{25}{36}\)