Sam is buying packages with 9 beads each. His mom bought him 63 more beads. Now, he has 153 beads. How many packages did he buy? Use algebra to determine the answer.(1 point)
Let x be the number of packages Sam bought.
The total number of beads before Sam's mom bought him more beads is 9x.
After his mom bought him more beads he has 9x + 63 beads.
So the equation will be:
9x + 63 = 153
Subtracting 63 from both sides:
9x = 153 - 63
9x = 90
Dividing both sides by 9:
x = 10
Therefore, Sam bought 10 packages. Answer: \boxed{10}.