Amir bought a comic book for $9 and four pens. He spent a total of $25.(1 point)

Write an equation that can be used to find the cost of each pen, p.

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How much does each pen cost?

1 answer

To find the cost of each pen, we can start by writing an equation based on the information given. Amir bought a comic book for $9 and four pens, spending a total of $25.

Let \( p \) be the cost of each pen. The total cost can be expressed as:

\[ 9 + 4p = 25 \]

Now, we can solve this equation for \( p \):

  1. Subtract 9 from both sides: \[ 4p = 25 - 9 \] \[ 4p = 16 \]

  2. Divide both sides by 4: \[ p = \frac{16}{4} \] \[ p = 4 \]

Therefore, each pen costs $4.