please answer this question , I have my exams today
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(A-B) year before
A = 2(B-(A-B))
A = 2(B-A+B)
A = 4B-2A
3A = 4B --------------------
A+B = 63 -----------------
solving both ,,
A + 3A/4 = 63
7A = 63*4
A = 36
B = 27
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