SOLUTION: a number is four less than four times another number. if their sum is 21 find the numbers

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Question 863273: a number is four less than four times another number. if their sum is 21 find the numbers
Answer by ben720(159)   (Show Source): You can put this solution on YOUR website!
A number is four less than four times another number (n). Therefore, the first number is 4n-4. If their sum is 21, meaning that
Combine Like Terms

Add 4 to both sides

Divide both sides by 5.
n=5. Because the second is 4n-4, it's 16
The numbers are 5 and 16.

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