Answer:
1 or 3 sorry if wrong
Step-by-step explanation:
Answer:
5
Step-by-step explanation:
You need to first add up all the berries: 2+2+5+7+9 which is 25.
There are 5 people so you need to divide 25 by 5: 25÷5 which is 5
So each person will have 5 berries each.
2a + 21 = 8a - 9
Combine like terms.
2a + 21 = 8a - 9
-2a -2a
21 = 6a - 9
+9 +9
30 = 6a
6a/6 = 30/6
a = 5
Answer: a = 5