Answer:
2r + 2
Explanation:
8r+7−6r−5
Terms with r are like terms and can be combined together.
Terms with no variable are like terms and can be combined together.
Terms with r and terms with no r are not like terms and cannot be combined together.
8r + 7 - 6r - 5 =
= 8r - 6r + 7 - 5
= 2r + 2