Final answer:
Tom bought 6 boxes of granola bars. We derived this by setting up the equation (x - 2) * 8 = 32, solving for x, and finding that x equals 6.
Step-by-step explanation:
To find the number of boxes, x, that Tom bought, we need to set up an equation. Since Tom kept two boxes for himself and each box contains 8 granola bars, we can express the total number of granola bars he brought to the party as (x - 2) × 8. We are given that this amount equals 32 granola bars.
The equation representing the situation is:
(x - 2) × 8 = 32
To solve for x:
- Divide both sides by 8 to isolate (x - 2):
- (x - 2) = 32 ÷ 8
- (x - 2) = 4
- Add 2 to both sides to solve for x:
- x = 4 + 2
- x = 6
Therefore, Tom bought 6 boxes of granola bars.