Step 3. Let n+0.15n=230 since the number is increased by 15% to 230.
Step 4. Then, 1.15n=230 and solve using the following steps.
Divide 1.15 to both sides of the equation
Step 5. ANSWER: The number is 200.
I hope the above steps were helpful.
For FREE Step-By-Step videos in Introduction to Algebra, please visit http://www.FreedomUniversity.TV/courses/IntroAlgebra and for Trigonometry visit http://www.FreedomUniversity.TV/courses/Trigonometry.
And good luck in your studies!
Respectfully,
Dr J
http://www.FreedomUniversity.TV