Answer: Alexis has 5 bags of Legos.
Step-by-step explanation:
Since each bag contains 8 Legos, the total number of Legos in
y bags is 8y.
After her sibling gives her 9 additional Legos, Alexis has a total of 49 Legos.
So, we can write the equation:
8y + 9 = 49
Now, let's solve for y:
8y = 49 − 9
8y = 40
= 40/8
y = 5