Problema Solution

2 is added to twice a certain number and the sum is doubled. The resultis 10 less than 5 times the original number. Find the original number

Answer provided by our tutors

let 'x' be the original number


2 is added to twice a certain number and the sum is doubled. the results 10 less than 5 times the original number


(2 + 2x)2 = 5x - 10


by simplifying and solving we find


x = 14


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the original number is 14.