Question

How do you combine like terms in `-5( - 10n + 10) + 7( 1+ 10n )`?

Answer 1

`120n-43`

Explanation:

1. Expand brackets

`-5(-10n+10) +7(1+10n)`

`-> 50n-50 + 7+70n`

1. Add the like terms together.

`**50n**`-50 + 7`**+70n**`

`->120n-43`

-Fish