Hey!
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![\boxed{ \bf 5n~+~13}](https://img.qammunity.org/2020/formulas/mathematics/middle-school/xq0of0dsrxqo7wza7car5f0unr6eihtnq2.png)
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Solution:
Number = n
Multiply a number and five: 5n
Add thirteen: + 13
End Result: 5n + 3
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Hope This Helped! Good Luck!