SOLUTION: The sum of four times a number and 16 is 100. Find the number

Algebra ->  Customizable Word Problem Solvers  -> Numbers -> SOLUTION: The sum of four times a number and 16 is 100. Find the number      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


   



Question 216538: The sum of four times a number and 16 is 100. Find the number
Found 2 solutions by tutor_paul, drj:
Answer by tutor_paul(519) About Me  (Show Source):
You can put this solution on YOUR website!
Put the words into an equation like this... let x be the number you are looking for:
4x%2B16=100
Solve for x:
4x=84
highlight%28x=21%29
=============
Good Luck,
tutor_paul@yahoo.com

Answer by drj(1380) About Me  (Show Source):
You can put this solution on YOUR website!
The sum of four times a number and 16 is 100. Find the number.

Step 1. Let x be the number

Step 2. Let 4x be four times the number

Step 3. Then 4x%2B16=100 since the sum of four times a number and 16 is 100.

Step 4. Solving yields the following steps:

Subtract 16 from both sides of the equation

4x%2B16-16=100-16

4x=84

Divide by 4 to both sides of equation

4x%2F4=84%2F4

x=21

Step 5. ANSWER: The number is 21.

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.

Good luck in your studies!

Respectfully,
Dr J