Question

- 1/2 - 2/3v = 4/5 please help

Answer 1

v = -
`(39)/(20)`

Explanation:

Given

-
`(1)/(2)` -
`(2)/(3)` v =
`(4)/(5)`

Multiply through by 30 ( the LCM of 2, 3 and 5 )

- 15 - 20v = 24 ( add 15 to both sides )

- 20v = 39 ( divide both sides by - 20 )

v = -
`(39)/(20)`

Answer 2

`v=-(39)/(20)`

Explanation:

Given the expression

`-(1)/(2)-(2)/(3)v=(4)/(5)`

Add 1/2 to both sides

`-(1)/(2)-(2)/(3)v+(1)/(2)=(4)/(5)+(1)/(2)`

`-(2)/(3)v=(13)/(10)`

Multiply both sides by 3

`3\left(-(2)/(3)v\right)=(13\cdot \:3)/(10)`

`-2v=(39)/(10)`

Divide both sides by -2

`(-2v)/(-2)=((39)/(10))/(-2)`

`v=-(39)/(20)`

Therefore,

`v=-(39)/(20)`