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 answe
Let's assume Sam bought x packages initially.
Since each package contains 9 beads, the total number of beads from the packages is 9x.
His mom bought him 63 more beads, making the total number of beads Sam has 9x + 63.
The question tells us that Sam now has 153 beads, so we can set up the equation 9x + 63 = 153.
Subtracting 63 from both sides of the equation, we get 9x = 90.
Dividing both sides of the equation by 9, we get x = 10.
Therefore, Sam bought 10 packages.