SOLUTION: three times the difference of a number and seven is one less than twice the number. find the number

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Question 943933: three times the difference of a number and seven is one less than twice the number. find the number
Answer by EdenWolf(517) About Me  (Show Source):
You can put this solution on YOUR website!
Let n represent the number that we are trying to find.
3%28n-7%29%2B1=2n
3n-21%2B1=2n
3n-20=2n
n=20