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You are told that the value of x lies somewhere between 300 and 400, and you are given an equation containing x. What would be a good first guess for x?

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Trial and Improvement involves intelligent guesswork. We use this method in algebra to work out the value of a letter when there is no obvious other way.
 


You are told that the value of x lies somewhere between 300 and 400, and you are given an equation containing x. What would be a good first guess for x?





 
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