Question

If `8n+22=70`, what is `3n`?

Answer 1

In order to know what `3n` is, `n` needs to be found initially.
`8n + 22 = 70`
`8n = 70 - 22`
`8n = 48`
`n = 48/8`
`n = 6`
If `n = 6`, then `3n = 6 * 3`
`= 18`
Therefore, `3n = 18`

Answer 2

`3n=18`

Explanation:

`"solve the given equation for n"`

`8n+22=70`

`"subtract 22 from both sides"`

`8ncancel(+22)cancel(-22)=70-22`

`rArr8n=48`

`"divide both sides by 8"`

`(cancel(8) n)/cancel(8)=48/8`

`rArrn=6`

`rArr3n=3xx6=18`