SOLUTION: charlie is 4 more than twice as old as frank. Frank is 3 years younger than bob. If bob is 9 years old, how old is charlie

Algebra ->  Customizable Word Problem Solvers  -> Age -> SOLUTION: charlie is 4 more than twice as old as frank. Frank is 3 years younger than bob. If bob is 9 years old, how old is charlie      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


   



Question 1157378: charlie is 4 more than twice as old as frank. Frank is 3 years younger than bob. If bob is 9 years old, how old is charlie
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let +x+ = Frank's age
+2x+%2B+4+ = Charlie's age
+x+%2B+3+ = Bob's age
+9+ = Bob's age
----------------------------------
+x+%2B+3+=+9+
+x+=+6+
+2x+%2B+4+=+2%2A6+%2B+4+
+2x+%2B+4+=+12+%2B+4+
+2x+%2B+4+=+16+
Charlie is 16