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How many variables are in 10 - 3x + 4y - z?

1 Answer

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Final answer:

The expression 10 - 3x + 4y - z has three variables: x, y, and z. Variables are symbols representing unknowns or quantities that can vary.

Step-by-step explanation:

The expression 10 - 3x + 4y - z contains three variables: x, y, and z. To determine the number of variables, we look for different alphabetic characters that represent unknown values or quantities that can change. Here, x, y, and z are distinct variables, making a total of three. It's important to note that variables are symbolic representations, and their values can be determined if we have relevant equations or additional information.

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