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's assume that Sam bought x packages. Since each package has 9 beads, the total number of beads before his mom bought him more is 9x.
After his mom bought him 63 more beads, the total number of beads becomes 9x + 63.
And we know that he 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 by 9, we get x = 10.
Therefore, Sam bought 10 packages.