Question

-(5n-9)+3n=-2(5n-20)
what is n?

Answer 1

`n=3.875`

Explanation:

First, we can expand the brackets:

`-(5n-9)+3n=-2(5n-20)` (given)

`-5n+9+3n=-10n+40`

`-2n+9=-10n+40` (combine like-terms)

`8n=31`

`n=3.875`

Hope this helps :)

Answer 2

answer and explanation in the pics above

hope it helps