Question

How do you simplify `4(2r+3)-5(2r+1)`?

Answer 1

`7-2r`

Explanation:

`4(2r+3)-5(2r+1)`

Open the brackets multiplying the inside terms by the outside number. Keep in mind that `-` multiplied by `+` is `-`.

`8r+12-10r-5`

Simplify.

`-2r+7` or `7-2r`