Question

(4,5-2x):3/4=1 1/3 giảo giùm mik nha mik cần gấp

 

Answer 1

\(\left(\dfrac{9}{2}-2x\right):\dfrac{3}{4}=\dfrac{4}{3}\\ \dfrac{9}{2}-2x=\dfrac{4}{3}.\dfrac{3}{4}\\ \dfrac{9}{2}-2x=1\\ 2x=\dfrac{9}{2}-1\\ 2x=\dfrac{9-2}{2}\\ 2x=\dfrac{7}{2}\\ x=\dfrac{7}{2}:2\\ x=\dfrac{7}{4}\)

Answer 2

`(4,5  -2x) :3/4 = 1 1/3`

`(4,5  -2x) :3/4 =4/3`

`(9/2 - 2x) : 3/4 = 4/3`

`9/2 - 2x= 4/3 xx 3/4`

`9/2 - 2x  =1`

`2x=9/2 - 1`

`2x=9/2 - 2/2`

`2x = 7/2`

`x=7/2 : 2`

`x=7/2 xx 1/2`

`x=7/4`

Vậy `x=7/4`