Solve each equation. Graph and check your solutions.
To Solve: The absolute value equation for ‘n’, graph and check.
Answer to Problem 3P
Explanation of Solution
Given information: The absolute value equation
Calculation:
Let’s solve the equation for ‘n’ using different properties of equality
Subtract both sides 2.
Now, solve for absolute value sign. We get two values for the ‘n’
Graph:
Check:
Now, let’s check the equation by plugging in the values for ‘n’
When n=-3
3+2 =5
5=5
Yes! We get true equation so, n=-3 is solution to the equation.
Now, when n=3
3+2 =5
5=5
Yes! The equation is true for n=3 too, so n=3 is solution to the equation.
Chapter 3 Solutions
High School Math 2012 Common-core Algebra 1 Practice And Problem Solvingworkbook Grade 8/9
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