Final answer:
The first step in the number machine could be addition, subtraction, multiplication, or division depending on the input and output values.
Step-by-step explanation:
The first step in the number machine could be addition, subtraction, multiplication, or division. It is important to consider the given number and the desired output to determine which operation was performed in the number machine.
For example, if the number went into the machine as 5 and came out as 10, then the first step could be addition (5 + 5 = 10), multiplication (5 x 2 = 10), or any other operation that transforms the input 5 into 10.
To determine the first step in the number machine, we would need more information about the specific input and output values or any clues given in the question.