SOLUTION: The age difference between my son and me is 30 years. In 3 years from today , I will be three times as old as my son.What is my age now?

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Question 1150498: The age difference between my son and me is 30 years. In 3 years from today , I will be three times as old as my son.What is my age now?
Found 2 solutions by ikleyn, Alan3354:
Answer by ikleyn(52787)   (Show Source): You can put this solution on YOUR website!
.

Let the son age will be x years.

Then your age is (x+30) years.


In three years . . . 


    (x + 30) + 3 = 3*(x+3).


Simplify and solve


    x + 33 = 3x + 9

    33 - 9 =  3x - x

    24     = 2x

      x    =  = 12.


Thus the son is 12 years old; you are 12+30 = 42 years old.


ANSWER.  You are 42 years old.

Solved.

---------------

There is a bunch of lessons on age word problems
    - Age problems and their solutions
    - A fresh formulation of a traditional age problem
    - Really intricate age word problems
    - Selected age word problems from the archive
    - Age problems for mental solution
in this site.

Read them and become an expert in solving age problems.

Also,  you have this free of charge online textbook in ALGEBRA-I in this site
    - ALGEBRA-I - YOUR ONLINE TEXTBOOK.

The referred lessons are the part of this online textbook under the topic "Age word problems".


Save the link to this online textbook together with its description

Free of charge online textbook in ALGEBRA-I
https://www.algebra.com/algebra/homework/quadratic/lessons/ALGEBRA-I-YOUR-ONLINE-TEXTBOOK.lesson

to your archive and use it when it is needed.


Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!
The age difference between my son and me is 30 years. In 3 years from today , I will be three times as old as my son.What is my age now?
-----------
3 times as old ---> 30 is 2x the son's age.
---> 15 & 45 in 3 years.
==================
The hard way:
In 3 years:
D = 3S
D = S + 30
etc.
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