SOLUTION: In 18 years Susie will be twice the age she was 9 years ago how old is Susie now

Algebra ->  Customizable Word Problem Solvers  -> Age -> SOLUTION: In 18 years Susie will be twice the age she was 9 years ago how old is Susie now       Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 846336: In 18 years Susie will be twice the age she was 9 years ago how old is Susie now



Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let +s+ = her age now
+s+%2B+18+ = her age in 18 years
+s+-+9+ = her age 9 years ago
-----------------------------
given:
+s+%2B+18+=+2%2A%28+s+-+9+%29+
+s+%2B+18+=+2s+-+18+
+18+=+s+-+18+
+s+=+36+
She is 36 now
check:
+s+%2B+18+=+2%2A%28+s+-+9+%29+
+36+%2B+18+=+2%2A%28+36+-+9+%29+
+54+=+2%2A27+
+54+=+54+
OK