SOLUTION: The sum of my dad's age and my grandfather's age is 163. The difference in their age is 21. Let x= my dad's age and let y= my grandfather's age. Write two equations representing th

Algebra.Com
Question 1013427: The sum of my dad's age and my grandfather's age is 163. The difference in their age is 21. Let x= my dad's age and let y= my grandfather's age. Write two equations representing the situation and solve this system using elimination OR substitution.
Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
The sum of my dad's age and my grandfather's age is 163. The difference in their age is 21. Let x= my dad's age and let y= my grandfather's age. Write two equations representing the situation and solve this system using elimination OR substitution.
------
Equations:
d + g = 163
g - d = 21
------
Add and solve for "g"::
2g = 184
Grandpa's age = 92 yrs
Dad's age = 163-92
----------------
Cheers,
Stan H.
----------

RELATED QUESTIONS

Matthew's dad is 3 years less than 4 times his son's age. The sum of mother's age and his (answered by ikleyn)
My brother says that my age is 3 years less than 3/4 my dad’s age. My sister says that... (answered by josgarithmetic)
My grandfather is years of age,if he gave birth to my dad at the age of 16years how old... (answered by josgarithmetic)
The ratio of johm’s ages to his sons age is 8:3 . if the sum of their ages is 55 years ,... (answered by ankor@dixie-net.com)
julia's age is 3 more than kris's age.let x=julia's age and y=kris's... (answered by ewatrrr)
I am half the age of my dad plus four but I know that my dad is eight years older than my (answered by ikleyn)
the sum of grandfather age and jimmy's age is 66. Three years later grandfather's age... (answered by josgarithmetic)
Kirsten's dad is 4 times older than she is today. The sum of their ages is 95. Find the... (answered by josgarithmetic,ikleyn)
The sum of Sherry and her dad’s ages is 60 now . In 12 years , Sherry will be half as old (answered by ikleyn)