Question 1130428
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A = C + 30         (1)
A + 4 = 2(C+4)     (2)


To solve the system, substitute eq(1) into eq(2).


(C+30) + 4 = 2(C+4)

C + 34 = 2C + 8

34 - 8 = 2C - C

C = 26.


Then from eq(1)  A = 26 + 30 = 56.


<U>Answer</U>.  Anna is 56 years old;  Corey is 26.
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