https://file.aiquickdraw.com/mathbot/file/1727205421945iomwwq39.jpg

To solve the problem:

Let the number of candy bars Ally bought be denoted as $ x $.

The total cost spent by Ally can be written as:
- Cost of magazine = \$5
- Cost of each candy bar = \$4
- Total money spent = \$21

The equation becomes:
\[
5 + 4x = 21
\]
Now, solve for $ x $:
\[
4x = 21 - 5
\]
\[
4x = 16
\]
\[
x = \frac{16}{4} = 4
\]

Thus, Ally bought 4 candy bars.

Would you like more details on the steps or have any other questions? Here are five related questions for further practice:

1. If the cost of the magazine was \$6 instead of \$5, how many candy bars could Ally buy?
2. If Ally spent \$25 in total, and the magazine still costs \$5, how many candy bars did she buy?
3. If each candy bar costs \$3, how many candy bars could Ally buy with \$21?
4. How much would Ally have left if she only bought 3 candy bars?
5. What would the total cost be if Ally bought 6 candy bars and the magazine?

**Tip:** When solving for an unknown, always isolate the variable step by step using inverse operations.

Ally spent $21 on a magazine and candy bars. If the magazine cost $5 and each candy bar cost $4, then how many candy bars did she buy?

Learn how to solve for the number of candy bars Ally bought when she spends $21 total, given that the magazine costs $5 and each candy bar costs $4. This problem covers basic algebra and linear equations, suitable for Grade 5-7 students.

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