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Concept explainers
To Evaluate: The simplified value of the expression
![Check Mark](/static/check-mark.png)
Answer to Problem 2CLR
The value of the expression
Explanation of Solution
Given information:
The expression is
Formula used:
An algebraic expression may be replaced by numerical expression when the value of variable plugged in the expression.
The expression within the parentheses should be simplified first.
When parentheses is not present order of simplification must be division first then subtraction.
Calculation:
Consider the expression
Recall that an algebraic expression may be replaced by numerical expression when the value of variable plugged in the expression.
Use it, the expression
Again recall that the expression within the parentheses should be simplified first,
Therefore,
But we know that when parentheses is not present order of simplification must be division first then subtraction.
Follow the rule,
Further simplify,
Thus, the value of the expression
Chapter 12 Solutions
Algebra: Structure And Method, Book 1
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