SOLUTION: One third of a certain number exceeds 12 by as much as 100 exceeds the number. What is the number? thanks

Question 188084: One third of a certain number exceeds 12 by as much as 100 exceeds the number. What is the number?

thanks
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
One third of a certain number exceeds 12 by as much as 100 exceeds the number. What is the number?
:
Let x = " a certain number"
x = 12 + (100-x)
;
x = 112 - x
Multiply equation by 3
x = 336 - 3x
:
x + 3x = 336
:
4x = 336
x =
x = 84
:
:
Is that true?
*84 = 12 + 100 - 84
28 = 28

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