SOLUTION: The sum of my age and my grandfathers age is 80. The difference in our ages is 64. How old am I?

Algebra ->  Customizable Word Problem Solvers  -> Age -> SOLUTION: The sum of my age and my grandfathers age is 80. The difference in our ages is 64. How old am I?      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


   



Question 521018: The sum of my age and my grandfathers age is 80. The difference in our ages is 64. How old am I?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
The sum of my age and my grandfathers age is 80. The difference in our ages is 64. How old am I?
----
Equations:
g + y = 80
g - y = 64
----
Add and solve for "g":
2g = 144
g = 72 (grandfather's age)
---
Solve for "y":
g + y = 80
72 + y = 80
y = 8 (your age now)
=========================
Cheers,
Stan H.
=============================