Function machines

Function machines are a fun way to understand how inputs are turned into outputs using mathematical rules — just like a vending machine gives you something different depending on the button you press! They're used in computer programming, science formulas, and everyday problem solving to model how one thing affects another. Jump to the questions
Practise now
Solve the function machine below. Some ask you to find the output and others the input. Integers only. Good luck!
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