Math Is Easy - Use Algebra To Solve Word Problem 1!If 27 is subtracted from three times a certain number,the result is 18. Find the number. (Note 1)If we let n represent the number to be found, thesentence If 27 is subtracted from three times a certain number, the resultis 18.can be translated into the following algebraic equation: 3n27 = 18Solve this equation3n27 = 18 + 27= + 27 Add 27 to bothsides3n + 0 =453n = 453n/3 = 45/3 Divideeach side by 3n = 15 Now we substitute the solutionfor n into the original equation to see if it works.3n 27 =183(15) 27 = 1845 27 =1818= 18We must also see if the solution works in theoriginal problem statement. If 27 is subtracted from three times a certain number,the result is 18.If 27 is subtracted from three times a certain number(3X 15), the result is 18.If 27 is subtracted from 45, the result is 18.4527 = 18We have just solved a first degree equation. (Note1)The source for the problem statement is:Intermediate AlgebraFor College Students by Jerome E. Kaufman CloseWindow