SOLUTION: a+b+c=18 8a=b+c a+c=11

Algebra ->  Coordinate Systems and Linear Equations  -> Lessons -> SOLUTION: a+b+c=18 8a=b+c a+c=11      Log On


   

Question 253998: a+b+c=18
8a=b+c
a+c=11
Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
a+b+c=18
8a=b+c
a+c=11
.
a+8a=18 Since 8a=b+c
9a=18
a=2
c=9
b=7
.
Ed