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 the number of packages Sam bought be represented by x.
Since each package contains 9 beads, the total number of beads in the packages is 9x.
When Sam's mom bought him 63 more beads, the total number of beads he has is now 9x + 63.
Since Sam has 153 beads in total, we can set up the equation 9x + 63 = 153.
Subtracting 63 from both sides, we get 9x = 90.
Dividing both sides by 9, we find that x = 10.
Therefore, Sam bought 10 packages.