Question

1/3k + 80 = 1/2k + 120 What does k =

Answer 1

Hi there,
1/3k + 80 = 1/2k + 120
1/3k - 1/2k = 120-80
-1/6k = 40
-k = 40/-1/6k
k= -240

Hope this helps :))

~Top

Answer 2

k=
`(-1)/(240)`

Explanation:

Given :
`(1)/(3k)+80 =(1)/(2k)+120`.

To find : What does k =

Solution : We have given

`(1)/(3k)+80 =(1)/(2k)+120`.

On subtracting both sides by 80

`(1)/(3k)=(1)/(2k)+120-80`.

`(1)/(3k)=(1)/(2k)+40`.

On subtracting both sides by
`(1)/(2k)`.

`(1)/(3k)-(1)/(2k)= 40`.

On taking common denominator

`(2-3)/(6k)= 40`.

`(-1)/(6k)= 40`.

k=
`(-1)/(240)`.

Therefore, k=
`(-1)/(240)`.