Question

tìm x biết  2/3x - 2/5 = 1/2x - 1/3

Answer 1

\(\dfrac{2}{3}x-\dfrac{1}{2}x=-\dfrac{1}{3}+\dfrac{2}{5}\\\dfrac{4-3}{2}x=\dfrac{-5+6}{15}\\ \dfrac{1}{2}x=\dfrac{1}{15}\\ x=\dfrac{1}{15}:\dfrac{1}{2}\\ x=\dfrac{2}{15}\)

Answer 2

` 2/3 x - 2/5 = 1/2 x - 1/3`

`=>2/3 x - 1/2 x = -1/3 + 2/5`

`=>(2/3-1/2)x= 1/15`

`=>1/6x=1/15`

`=> x= 1/15 : 1/6`

`=> x= 1/15 . 6/1`

`=> x= 6/15`