Question 660873

I am having a hard time on setting this problem up.  I keep getting ridiculous numbers with remainders.  

"I am thinking of a number.  I subtract 7, multiply the result by 5, and then add 25, I get 80.  What is the number?"


Let the number be N


Then: 5(N - 7) + 25 = 80


Solve for N and you have your number


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