Concept explainers
In Problems 17-36, solve each equation algebraically. Verify your solution using a graphing utility.
To find: The solution for the equation algebraically and verify using a graphing utility.
Answer to Problem 21AYU
Solution:
Explanation of Solution
Given:
The equation
Algebraic solution:
Take LCM on left hand side
Open the brackets in the numerator of left hand side
Combine the like terms in the numerator of left hand side
Multiply 21 on both sides
Subtract 13 from both sides
Check:
Let in the expression in on the left side of the equation
Take LCM in the numerators
Take LCM
Since the two expressions are equal, the solution checks.
Chapter 1 Solutions
Precalculus Enhanced with Graphing Utilities
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