SOLUTION: Mary's age is 3 times as old as her son. In 12 years Mary's age will be one year less than twice her son's age.How old is each now?

Algebra ->  Customizable Word Problem Solvers  -> Age -> SOLUTION: Mary's age is 3 times as old as her son. In 12 years Mary's age will be one year less than twice her son's age.How old is each now?      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 415700: Mary's age is 3 times as old as her son. In 12 years Mary's age will be one year less than twice her son's age.How old is each now?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi

Mary's age is 3 times as old as her son

Let x and 3x represent the son's and Mary's age NOW respectively

Question states*** In 12 years...

 3x + 12 = 2(x+12) -1

Solving for x

    x = 24-1-12

    x = 11, son's age now.  Mary is 33

CHECKING our Answer***

  45 = 2*23 - 1