SOLUTION: 3 friends, a, b and c. b is 4 years older than a. c is 8 years younger than a. their three ages total 44. how old are a, b and c?

Question 945859: 3 friends, a, b and c. b is 4 years older than a. c is 8 years younger than a. their three ages total 44. how old are a, b and c?
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
x = age of a
y = age of b
z = age of c
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y = x + 4
z = x - 8
x + y + z = 44
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put the system of linear equations into standard form
---
x - y = -4
x - z = 8
x + y + z = 44
---
copy and paste the above standard form linear equations in to this solver:
http://sooeet.com/math/system-of-linear-equations-solver.php
---
solution:
x = 16
y = 20
z = 8
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