Evaluating an expression with one variable ex 4, x - 3 - 7x; x = 10

The video tutorial introduces the concept of variables and demonstrates how to evaluate and substitute a known value into a variable. It further explains the importance of using parentheses during substitution and applies the order of operations to solve an equation, resulting in a final solution.

Describe the steps taken to simplify the expression after substituting the value of X.

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What is the final solution of the expression after evaluating 10 - 3 - 7 * 10?

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