SOLUTION: i multiply a certain number by 28,add 14 to the product,divide the sum by 13 and subtract 4 from the result.if i obtain twice the original number what number did i take at first

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Question 893377: i multiply a certain number by 28,add 14 to the product,divide the sum by 13 and subtract 4 from the result.if i obtain twice the original number what number did i take at first

Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
%28N%2A28%2B14%29%2F13-4=2%2AN
Multiply both sides by 13
28N%2B14-4%2A13=26N
28N%2B14-52=26N
28N-38=26N
2N=38
N=19