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.

Sam got 9x beads from the packages.
63 + 9x = 153
9x = 90
x = <<10=10>>10
Sam bought 10 packages. Answer: \boxed{10}.