When one of the numbers 1, 2, 3, ... , ݊ − 1, ݊ was eliminated, the mean of the remaining numbers was 4.75. Which number was eliminated?
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FIRST-DEGREE EQUATIONS AND INEQUALITIES
In this chapter, we will develop certain techniques that help solve problems stated in words. These techniques involve rewriting problems in the form of symbols. For example, the stated problem
"Find a number which, when added to 3, yields 7"
may be written as:
3 + ? = 7, 3 + n = 7, 3 + x = 1
Step-by-step explanation:
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