Answers

2016-01-20T12:32:17+08:00


57-5=52

52/2=26

26+5=31-1=30 age of celeste

26-1=25 age of beth

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2016-01-20T19:02:52+08:00
Let x = Beth's age
x - 5 = Celste's age

Therefore, in next year... it'll become..
x + 1 = Beth's age
x - 5 + 1 = x - 4 = Celste's age

And the equation will be..

x + 1 + x - 4 = 57
2x = 57 + 3
 \frac{2x}{2} = \frac{60}{2}
x = 30 - Beth's present age
x - 5 = 30 - 5 = 25 - Celste's present age 

Check:
x + 1 + x - 4 = 57
30 + 1 + 30 - 4 = 57
60 - 3 = 57
57 = 57
-----------------------------------------or----------------------------------------
30 + 1 + 25 + 1 = 57
31 + 26 = 57
57 = 57

(Just the same, actually.)



Therefore, the answer to your question is:
Beth's age = 30 yrs. old
Celste's age = 25 yrs. old

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