If 20 is added to a certain number and the sum is divided by 5, the result is 1 more than 1/2 of the original number. Find the original number.

First, we translate the information that the question gives us:20+x is "twenty added to a certain number" (20+x) / 5 is "the sum divided by five"1+12x is "one more than twelve times the original number"Putting it all together, we get the following equation: (x+20) / 5 = 1 + 12xSolve for x:x+20=5 (1+12x) x+20=5+60x20-5=60x-x15=59x15/59 = xTherefore, the original number was 15/59