Question

Tìm x biết:

(\(1\dfrac{1}{3}\)\(-25\%\)\(-\dfrac{5}{12}\))+2x=\(1,6:\dfrac{3}{5}\)

Answer 1

`(1 1/3 - 25% - 5/12) + 2x=1,6 : 3/5`

`(4/3 - 1/4 - 5/12) +2x=8/5 : 3/5`

`2/3 + 2x = 8/3`

`2x=2`

`x=1`

Answer 2

(\(\dfrac{4}{3}-\dfrac{1}{4}-\dfrac{5}{12}\))+2x=\(\dfrac{8}{5}:\dfrac{3}{5}\)

(\(\dfrac{13}{12}\)\(-\dfrac{5}{12}\))+2x=\(\dfrac{8}{3}\)

\(\dfrac{2}{3}\)+2x=\(\dfrac{8}{3}\)

2x=\(\dfrac{8}{3}\):\(\dfrac{2}{3}\)

2x=4

⇒x=2

Answer 3

\(\left(1\dfrac{1}{3}-25\%-\dfrac{5}{12}\right)+2x=1,6:\dfrac{3}{5}\) 

     \(\left(\dfrac{4}{3}-\dfrac{1}{4}-\dfrac{5}{12}\right)+2x=\dfrac{8}{5}:\dfrac{3}{5}\)  

                            \(\dfrac{2}{3}+2x=\dfrac{8}{3}\) 

                                   \(2x=\dfrac{8}{3}-\dfrac{2}{3}\) 

                                   \(2x=2\) 

                                     \(x=2:2\) 

                                     \(x=1\)