Question

\(\dfrac{5}{7}\) + \(\dfrac{2}{3}x\) = \(\dfrac{3}{10}\)

Answer 1

`5/7 + 2/3x = 3/10`

`2/3x = 3/10 - 5/7`

`2/3x=(-29)/70`

`x= (-29)/70 : 2/3`

`x = (-29)/70 xx 3/2`

`x=(-87)/140`

Answer 2

\(\dfrac{2}{3}x=\dfrac{3}{10}-\dfrac{5}{7}\)

\(\dfrac{2}{3}x=\dfrac{-29}{70}\)

\(x=\dfrac{-29}{70}:\dfrac{2}{3}\)

\(x=\dfrac{-87}{140}\)

vậy x = ...

Answer 3

`5/7 + 2/3x = 3/19`

`2/3x= 3/10 - 5/7`

`2/3x = (-29)/70`

`x= (-29)/70 : 2/3`

`x= (-87)/140`

Answer 4

vừa sang olm nhắn tí mè trl hết r :v

`5/7 + 2/3x = 3/10`

`=>    2/3x  = 3/10 - 5/7`

`=>    2/3x  = -29/70`

`=>        x    = -29/70 : 2/3

`=>        x    = -87/140`