
Polly N. answered 08/24/15
Tutor
5.0
(62)
Making math and chemistry easier!
-a + 7 + 5(-4 + 7a)
1st step: Distribute the 5 to everything inside the parentheses and you would get:
-a + 7 -20 +35a
2nd step: Combine like-terms to get final answer
-34a -13