Step-by-step explanation:
Step 1: Distrbute 3 into (9f - 13)
3 • 9f = 27f
3 • 13 = 39
18 + 27f - 39
Step 2: Solve like-terms
(18 and 39 are the only like terms. 27f and 39 aren't like terms since 39 doesn't have a variable therefore, you can't solve 27f - 39)
39 - 18 = 21
ANSWER:
27f - 21
Hope this is correct!
- justy⊕∪rultimαtefαngirl
