Question

1/2 n + 3/4 n = 1/2

Solve for n =

Answer 1

`(2)/(5)`

Explanation:

`(1)/(2)` n +
`(3)/(4)` n =
`(1)/(2)`
`(1)/(2)` means the same as
`(2)/(4)`

`(2)/(4)` n +
`(3)/(4)` n =
`(1)/(2)`

`(5)/(4)` n =
`(1)/(2)` multiply each side by
`(4)/(5)`

`((4)/(5))`
`(5)/(4)` n =
`((4)/(5))`
`(1)/(2)`

n =
`(4)/(10)` =
`(2)/(5)`

Answer 2

n=2/5

Explanation:

Please look at the image below! :D