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 35AYU
Solution:
Explanation of Solution
Given:
The equation
Algebraic solution:
Take LCM on left hand side
Cross multiply both sides
Add to both sides
Add to both sides
Subtract 16 from both sides
Splitting the middle term
Take common from first two terms and group
Take common factor
or
or
or
or
Check:
Let in the expression in on the left side of the equation
Take LCM
Since the expression on the left side give which is on the right side, the solution checks
Let on the left side of the equation
Take LCM in the denominator
Take LCM
Divide the numerator and denominator by 3
Divide the numerator and denominator by 9
Since the expression on the left side gives which is on the right side, the solution checks.
Chapter 1 Solutions
EBK PRECALC.:ENHANCED W/GRAPH.UTIL.
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