SOLUTION: PLEASE HELP WITH THIS WORD PROBLEM...ERIN AND SUSAN BOTH TOOK THEIR DOGS FOR A WALK. TOGETHER THEY WALKED 15 MILES. IF ERIN WALKED 3 MILES LESS THAN SUSAN,HOW FAR DID SUSAN WALK HE

Algebra ->  Real-numbers -> SOLUTION: PLEASE HELP WITH THIS WORD PROBLEM...ERIN AND SUSAN BOTH TOOK THEIR DOGS FOR A WALK. TOGETHER THEY WALKED 15 MILES. IF ERIN WALKED 3 MILES LESS THAN SUSAN,HOW FAR DID SUSAN WALK HE      Log On


   

Question 497443: PLEASE HELP WITH THIS WORD PROBLEM...ERIN AND SUSAN BOTH TOOK THEIR DOGS FOR A WALK. TOGETHER THEY WALKED 15 MILES. IF ERIN WALKED 3 MILES LESS THAN SUSAN,HOW FAR DID SUSAN WALK HER DOG?

Answer by lwsshak3(11628) About Me  (Show Source):
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PLEASE HELP WITH THIS WORD PROBLEM...ERIN AND SUSAN BOTH TOOK THEIR DOGS FOR A WALK. TOGETHER THEY WALKED 15 MILES. IF ERIN WALKED 3 MILES LESS THAN SUSAN,HOW FAR DID SUSAN WALK HER
**
let x=miles Susan walked
x-3 = miles Erin walked
..
x+x-3=15
2x=18
x=9
ans:
Susan walked her dog 9 miles