SOLUTION: Cary is 8 years older than Dan. In 7 years the sum of their ages will be 84. Find the age of each man.

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Question 1066535: Cary is 8 years older than Dan. In 7 years the sum of their ages will be 84. Find the age of each man.
Found 2 solutions by ikleyn, MathTherapy:
Answer by ikleyn(52788) About Me  (Show Source):
You can put this solution on YOUR website!
.
C - D = 8

C + D = 84 - 2*7 = 70
--------------------  Add the two equations --->

2C = 78  --->  C = 78/2 = 39;  D = 39 - 8 = 31.

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
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".


Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!

Cary is 8 years older than Dan. In 7 years the sum of their ages will be 84. Find the age of each man.