SOLUTION: Cindy is 7 years older than her brother sam their combined ages is 23 how old is cindy.

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Question 1111461: Cindy is 7 years older than her brother sam their combined ages is 23 how old is cindy.
Found 3 solutions by ikleyn, Alan3354, rothauserc:
Answer by ikleyn(52790)   (Show Source): You can put this solution on YOUR website!
.
Cindy       + Brother = 23


(Brother+7) + Brother = 23


2*Brother + 7 = 23


2*Brother = 23 - 7 = 16  ====>   Brother =  = 8.


Answer.  Brother is 8 years old.  Cindy is 8+7 = 15.


Check.  8 + 15 = 23   ! Correct !

Solved.


Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!
Cindy is 7 years older than her brother sam their combined ages is 23 how old is cindy.
=====================
C - S = 7
C + S = 23
------------------------ Add
Answer by rothauserc(4718)   (Show Source): You can put this solution on YOUR website!
let Sam's age be x
:
Cindy's age is x + 7
:
x+7 +x = 23
:
2x = 16
:
x = 8
:
Cindy's age = 8 + 7 = 15 years old
:
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