SOLUTION: five years ago, jonh^s age was half of the age he will be in 8 years. how old is he now?

Algebra.Com
Question 1068444: five years ago, jonh^s age was half of the age he will be in 8 years. how old is he now?
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39620)   (Show Source): You can put this solution on YOUR website!
Here is the description in the form of an equation, using j for John's age now.
-----mistake

should be, instead,
Answer by ikleyn(52810)   (Show Source): You can put this solution on YOUR website!
.
five years ago, jonh^s age was half of the age he will be in 8 years. how old is he now?
~~~~~~~~~~~~~~~~~~~~~~ 

J-5 =   --->

2J - 10 = J + 8  --->

J = 18.

Answer. John is 18 years old now.

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 problem
    - Selected age word problems from the archive
    - OVERVIEW of lessons on age problems
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".


The solution by "josgarithmetic" is wrong.



RELATED QUESTIONS

Five years ago, John's age was half of the age he will be in 8 years. How old is he... (answered by Theo)
Five years ago. Jhons age was half of the age he will be in 8 years. How old is he now? (answered by drj)
Five years ago, John's age was half of the age he will be in 8 years. How old is he... (answered by stanbon)
8 years ago, Mario’s age was half of the age he will be in 11 years. How old is he now? (answered by josgarithmetic)
5 years ago, john age was half of the age he will be in 8 years.how old is he now (answered by jorel1380)
Five years ago, John's age was half of the age he will be in eight years. How old is he... (answered by Alan3354)
five years ,Gokous age was half of the age he will be in 8 years.How old is he... (answered by ikleyn)
Four years ago, Aminu's age was half of the age he will be in 8 years. How old is he... (answered by addingup,ewatrrr)
Seven years ago, Martin’s age was one third of the age he will be in 9 years. How old is... (answered by ikleyn)