SOLUTION: Ms Gandt is 24 yrs old when brittney is born, in 3 yrs the sum of their age will be 68. How old are they?

Algebra ->  Equations -> SOLUTION: Ms Gandt is 24 yrs old when brittney is born, in 3 yrs the sum of their age will be 68. How old are they?      Log On


   

Question 503209: Ms Gandt is 24 yrs old when brittney is born, in 3 yrs the sum of their age will be 68. How old are they?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let +g = Ms Gandt's age now
Let +b = Brittney's age now
given:
(1) +g+=+b+%2B+24+
(2) +g+%2B+3+%2B+b+%2B+3+=+68+
---------------------
(2) +g+%2B+b+=+62+
(1) +g+-+b+=+24+
Add the equations
+2g+=+86+
+g+=+43+
and, since
(1) +g+-+b+=+24+
(1) +43+-+b+=+24+
(1) +b+=+43+-+24+
(1) +b+=+19+
43 is Ms Gandt's age now
19 is Brittney's age now